DE102006037730A1 - LED conversion phosphors in the form of ceramic bodies - Google Patents
LED conversion phosphors in the form of ceramic bodies Download PDFInfo
- Publication number
- DE102006037730A1 DE102006037730A1 DE102006037730A DE102006037730A DE102006037730A1 DE 102006037730 A1 DE102006037730 A1 DE 102006037730A1 DE 102006037730 A DE102006037730 A DE 102006037730A DE 102006037730 A DE102006037730 A DE 102006037730A DE 102006037730 A1 DE102006037730 A1 DE 102006037730A1
- Authority
- DE
- Germany
- Prior art keywords
- phosphor
- ceramic
- phosphor body
- sio
- ceramic phosphor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 75
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000000034 method Methods 0.000 claims abstract description 36
- 239000002243 precursor Substances 0.000 claims abstract description 32
- 239000000126 substance Substances 0.000 claims abstract description 18
- 238000000462 isostatic pressing Methods 0.000 claims abstract description 12
- 239000002019 doping agent Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000007669 thermal treatment Methods 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 29
- 229910004283 SiO 4 Inorganic materials 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- 229910052684 Cerium Inorganic materials 0.000 claims description 12
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- 229910052788 barium Inorganic materials 0.000 claims description 9
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 229910052727 yttrium Inorganic materials 0.000 claims description 9
- 229910003668 SrAl Inorganic materials 0.000 claims description 8
- 229910052712 strontium Inorganic materials 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000000975 co-precipitation Methods 0.000 claims description 6
- 229910052771 Terbium Inorganic materials 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000002105 nanoparticle Substances 0.000 claims description 5
- 238000005118 spray pyrolysis Methods 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 229910002601 GaN Inorganic materials 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 3
- -1 alcoholates Chemical class 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052733 gallium Inorganic materials 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010970 precious metal Substances 0.000 claims description 3
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 3
- 238000001694 spray drying Methods 0.000 claims description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 claims description 2
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000011858 nanopowder Substances 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- 150000003891 oxalate salts Chemical class 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 150000003624 transition metals Chemical class 0.000 claims description 2
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical class [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims 1
- 239000000243 solution Substances 0.000 description 39
- 239000011777 magnesium Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 229910052725 zinc Inorganic materials 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 229910017639 MgSi Inorganic materials 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 229910004261 CaF 2 Inorganic materials 0.000 description 6
- 229910004762 CaSiO Inorganic materials 0.000 description 6
- 229910004631 Ce(NO3)3.6H2O Inorganic materials 0.000 description 6
- 101100476480 Mus musculus S100a8 gene Proteins 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 229910052950 sphalerite Inorganic materials 0.000 description 5
- 229910052984 zinc sulfide Inorganic materials 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910015999 BaAl Inorganic materials 0.000 description 3
- 229910005560 Gd(NO3)3.6H2O Inorganic materials 0.000 description 3
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 3
- 229910008484 TiSi Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- 238000009841 combustion method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- 229910016066 BaSi Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 229910002420 LaOCl Inorganic materials 0.000 description 2
- 229910010199 LiAl Inorganic materials 0.000 description 2
- 229910010093 LiAlO Inorganic materials 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910002367 SrTiO Inorganic materials 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 239000012491 analyte Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
- 210000001072 colon Anatomy 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 1
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 1
- 101710134784 Agnoprotein Proteins 0.000 description 1
- 229910016036 BaF 2 Inorganic materials 0.000 description 1
- 101150027751 Casr gene Proteins 0.000 description 1
- 229910002492 Ce(NO3)3·6H2O Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910017414 LaAl Inorganic materials 0.000 description 1
- 229910012506 LiSi Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 229910017857 MgGa Inorganic materials 0.000 description 1
- 229910017625 MgSiO Inorganic materials 0.000 description 1
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 229910007709 ZnTe Inorganic materials 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001856 aerosol method Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- MWFSXYMZCVAQCC-UHFFFAOYSA-N gadolinium(iii) nitrate Chemical compound [Gd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O MWFSXYMZCVAQCC-UHFFFAOYSA-N 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004038 photonic crystal Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7774—Aluminates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
- C04B35/6267—Pyrolysis, carbonisation or auto-combustion reactions
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
- C04B35/6455—Hot isostatic pressing
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/5116—Ag or Au
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
- C04B41/515—Other specific metals
- C04B41/5155—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/88—Metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3229—Cerium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/443—Nitrates or nitrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/652—Reduction treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6582—Hydrogen containing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/76—Crystal structural characteristics, e.g. symmetry
- C04B2235/762—Cubic symmetry, e.g. beta-SiC
- C04B2235/764—Garnet structure A3B2(CO4)3
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9646—Optical properties
- C04B2235/9661—Colour
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Luminescent Compositions (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Die Erfindung betrifft einen keramischen Leuchtstoffkörper, erhältlich durch Mischen von mindestens zwei Edukten mit mindestens einem Dotierstoff nach nasschemischen Methoden und anschließender thermischer Behandlung zu Leuchtstoffprecursoren sowie isostatischer Verpressung. Der keramische Leuchtstoffkörper findet Anwendung als Konversionsleuchtstoff in LEDs.The invention relates to a ceramic phosphor body obtainable by mixing at least two educts with at least one dopant by wet-chemical methods and subsequent thermal treatment to phosphor precursors and isostatic pressing. The ceramic phosphor body is used as a conversion phosphor in LEDs.
Description
Die Erfindung betrifft einen keramischen Leuchtstoffkörper, dessen Herstellung nach nasschemischen Methoden sowie dessen Verwendung als LED-Konversionsleuchtstoff.The The invention relates to a ceramic phosphor body whose Production by wet-chemical methods and its use as LED conversion phosphor.
Das wichtigste und aussichtsreichste Konzept zur Weißlichtemission mittels LEDs liegt darin, dass ein im Blauen oder nahen UV emittierender, elektrolumineszenter Chip aus In(Al)GaN (oder in der Zukunft auch möglicherweise auf der Basis von ZnO) mit einem Konversionsleuchtstoff beschichtet wird, der vom Chip anregbar ist und bestimmte Wellenlängen emittiert. Diese Kombination von Chip und Leuchtstoff wird mit einem Guss- oder Spritzgussgehäuse aus Epoxiden, PMMA oder anderen Harzen umschlossen, um die Kombination gegen Umwelteinflüsse zu schützen, wobei das Gehäusematerial möglicht transparent im Sichtbaren und unter den gegebenen Bedingungen (T bis 200°C und hohe Strahlendichte und -Belastung durch Chip und Leuchtstoff) stabil und unveränderlich sein soll.The most important and promising concept for white light emission by means of LEDs is that a blue or near UV emitting, electroluminescent Chip made of In (Al) GaN (or possibly based in the future as well ZnO) is coated with a conversion phosphor which is excitable by the chip and emits certain wavelengths. This combination of chip and phosphor is made with a cast or injection molded housing Epoxies, PMMA or other resins enclosed to the combination against environmental influences to protect, the housing material allows transparent in the visible and under the given conditions (T up to 200 ° C and high Radiation density and loading by chip and phosphor) stable and unchanging should be.
Heutzutage werden die Leuchtstoffe als Mikropulver mit einer breiten, herstellungsbedingten Größenverteilung und Morphologie eingesetzt: Nach Dispergieren der Leuchtstoffe in einer Matrix aus Siliconen oder Harzen werden diese auf den Chip oder in einen den Chip umgebenden Reflektorkegel getropft oder auch in die Gehäusemasse eingearbeitet, wobei der Überzug mit dem Gehäusematerial stattfindet (Packaging, zu dem auch die elektrische Kontaktierung des Chips gehört). Auf diese Weise ist der Leuchtstoff nicht planbar, reproduzierbar und homogen auf/über dem Chip verteilt. Die Folge hiervon sind die bei heutigen LEDs beobachtbaren, inhomogenen Emissionskegel, d.h. unter verschiedenen Winkeln strahlt die LED unterschiedliches Licht ab. Wobei dieses Verhalten nicht reproduzierbar zu Unterschieden zwischen den LEDs einer Charge führt, wodurch alle LEDs einzeln geprüft und sortiert werden (Aufwändige Binning-Verfahren).nowadays The phosphors are micropowder with a wide, production-related size distribution and morphology: After dispersing the phosphors in a matrix of silicones or resins, these are on the chip or dropped into a reflector cone surrounding the chip or even in the housing mass incorporated, the coating with the housing material takes place (packaging, to which the electrical contact heard of the chip). In this way, the phosphor can not be planned, reproducible and homogeneous on / over distributed to the chip. The consequence of this is the current LEDs observable, inhomogeneous emission cone, i. at different angles the LED emits different light. And this behavior not reproducible to differences between the LEDs of a batch leads, causing all LEDs checked individually and sorted (time-consuming Binning process).
Außerdem wird ein beträchtlicher Anteil des vom Chip ausgestrahlten Lichtes an der oft zerklüfteten Oberfläche der meist hochbrechenden Leuchtstoffpulver gestreut und kann nicht vom Leuchtstoff konvertiert werden. Falls dieses Licht zum Chip hin zurückgestreut wird, kommt es zur Absorption im Chip, da bei Halbleitern die Stockesverschiebung zwischen Absorption und Emissionswellenlänge vernachlässigbar gering ist.In addition, will a considerable one Proportion of the light emitted by the chip on the often fissured surface of the mostly high refractive phosphor powder scattered and can not from Phosphor be converted. If this light backscattered back to the chip is, it comes to the absorption in the chip, since in semiconductors the Stockesverschiebung between Absorption and emission wavelength negligible is low.
Die
Die
Die
Die
Falls sich der keramische Lumineszenzkonversionskörper nicht direkt auf dem LED Chip befindet, sondern wenige Millimeter davon entfernt, können keine abbildenden Optiken mehr eingesetzt werden. Die Primärstrahlung des LED-Chips und die Sekundärstrahlung des Leuchtstoffes finden somit an weit voneinander entfernten Orten statt. Mit abbildenden Optiken, wie sie z.B. für Autoscheinwerfer erforderlich sind, entsteht kein homogenes Licht, sondern es werden zwei Lichtquellen abgebildet.If the ceramic Lumineszenzkonversionskörper not directly on the LED Chip is located, but a few millimeters away, none can imaging optics are used more. The primary radiation of the LED chip and the secondary radiation of the phosphor thus find at widely spaced locations instead of. With imaging optics, such as e.g. required for car headlights are not produced homogeneous light, but there are two light sources displayed.
Ein weiterer Nachteil des oben genannten keramischen Lumineszenzkonversionskörpers ist die Verwendung eines organischen Klebstoffes (z.B. Acrylate, Styrol etc.). Diese werden durch die hohe Strahlungsdichte des LED Chips und die hohe Temperatur geschädigt und führen durch Vergrauung zur Verringerung der Lichtleistung der LED.One Another disadvantage of the above-mentioned ceramic Lumineszenzkonversionskörpers the use of an organic adhesive (e.g., acrylates, styrene Etc.). These are due to the high radiation density of the LED chip and the high temperature damaged and lead by graying to reduce the light output of the LED.
Aufgabe der vorliegenden Erfindung ist es daher, ein keramischen Leuchtstoffkörper zu entwickeln, der eines oder mehrere der oben genannten Nachteile nicht aufweist.Object of the present invention is Therefore, to develop a ceramic phosphor body, which does not have one or more of the disadvantages mentioned above.
Überraschenderweise kann die vorliegende Aufgabe dadurch gelöst werden, dass der Leuchtstoff nasschemisch hergestellt wird mit anschließender isostatischer Verpressung und in Form eines homogenen, dünnen und nicht porösen Plättchens direkt auf die Oberfläche des Chips aufgebracht werden kann. Somit findet keine ortsabhängige Variation der Anregung und Emission des Leuchtstoffes statt, wodurch die damit ausgerüstete LED einen homogenen und farbkonstanten Lichtkegel emittiert und über eine hohe Lichtleistung verfügt.Surprisingly the present object can be achieved by the fact that the phosphor wet-chemical is prepared with subsequent isostatic Compression and in the form of a homogeneous, thin and non-porous plate directly on the surface of the chip can be applied. Thus, there is no location-dependent variation the excitation and emission of the phosphor instead, causing the so equipped LED emits a homogeneous and color constant cone of light and a high Light output features.
Gegenstand der vorliegenden Erfindung ist somit ein keramischer Leuchtstoffkörper erhältlich durch Mischen von mindestens zwei Edukten mit mindestens einem Dotierstoff nach nasschemischen Methoden und anschließender thermischer Behandlung zu Leuchtstoffprecursor-Partikeln, vorzugsweise mit einem mittleren Durchmesser von 50 nm bis 5 μm, sowie isostatischer Verpressung.object The present invention thus provides a ceramic phosphor body obtainable by Mixing at least two educts with at least one dopant after wet-chemical methods and subsequent thermal treatment to phosphor precursor particles, preferably with a middle Diameter from 50 nm to 5 μm, and isostatic pressing.
Streueffekte sind an der Oberfläche des erfindungsgemäßen Leuchtstoffkörpers, der vorzugsweise die Form eines Plättchens hat, vernachlässigbar, weil durch den direkten oder annähernd direkten, äquidistanten Kontakt des Leuchtstoffkörpers mit dem LED Chip eine sog. Nahfeldwechselwirkung besteht. Diese findet immer innerhalb von Abständen kleiner als die entsprechende Lichtwellenlänge (blaue LED = 450-470 nm, UV-LED = 380-420 nm) statt und ist besonders ausgeprägt, falls die Abstände geringer als 100 nm sind und ist u.a. durch das Nichtvorhandensein von Streueffekten charakterisiert (keine Entstehung von Elementarwellen möglich, weil hierfür vorhandene Raumlänge kleiner als Wellenlänge ist).scattering effects are on the surface of the phosphor body according to the invention, the preferably the shape of a platelet has, negligible, because by the direct or approximate direct, equidistant Contact of the phosphor body with the LED chip a so-called near field interaction exists. These always gets smaller within distances as the corresponding wavelength of light (blue LED = 450-470 nm, UV LED = 380-420 nm) and is particularly pronounced if the distances less than 100 nm are and are u.a. by the absence characterized by scattering effects (no formation of elementary waves possible, because of this existing room length less than wavelength is).
Ein weiterer Vorteil der erfindungsgemäßen Leuchtstoffkörper ist, dass keine aufwendige Dispergierung der Leuchtstoffe in Epoxiden, Siliconen oder Harzen notwendig ist. Diese aus dem Stand der Technik bekannten Dispersionen enthalten u.a. polymerisierbare Substanzen und sind wegen dieser und weiterer Inhaltstoffe nicht lagerfähig.One Another advantage of the phosphor body according to the invention is, that no complex dispersion of the phosphors in epoxides, Silicones or resins is necessary. These from the prior art known dispersions include i.a. polymerizable substances and are not storable because of these and other ingredients.
Mit den erfindungsgemäßen Leuchtstoffkörpern ist der LED Hersteller in der Lage, fertig einsetzbare Leuchtstoffe in Form von Plättchen zu lagern; zudem ist das Aufbringen der Leuchtstoffkeramik mit den sonstigen Prozessschritten der LED-Herstellung kompatibel, während dies bei der Aufbringung konventioneller Leuchtstoffpulver nicht der Fall ist. Daher ist letzterer Prozesschritt mit einem hohen Aufwand verbunden, was zu höheren Kosten bei der LED-Fertigung führt.With the phosphor bodies according to the invention The LED manufacturer is capable of ready-to-use phosphors in the form of platelets to store; Moreover, the application of the phosphor ceramic with the other process steps of LED manufacturing compatible while this in the application of conventional phosphor powder not the Case is. Therefore, the latter process step is associated with a lot of effort, what to higher Costs in the LED manufacturing leads.
Die erfindungsgemäßen Leuchtstoffkörper können aber auch, falls nicht auf höchste Effizienzen, d.h. Lumeneffizienzen der weißen LED Wert gelegt wird, auch direkt über einer fertigen, blauen oder UV-LED aufgebracht werden. Dadurch ist es möglich, durch einfachen Austausch des Leuchtstoffplättchens die Lichttemperatur und den Farbton des Lichtes zu beeinflussen. Dies kann in der einfachsten Weise dadurch geschehen, dass die chemisch identische Leuchtstoffsubstanz in Form unterschiedlich dicker Plättchen ausgetauscht wird.The However, phosphor bodies according to the invention can also, if not at the highest Efficiencies, i. Lumenefficiencies of the white LED value is set, too directly above a finished, blue or UV LED can be applied. This is it is possible by simply replacing the phosphor plate the light temperature and to influence the hue of the light. This can be done in the simplest way done by making the chemically identical phosphor substance is exchanged in the form of differently thick platelets.
Insbesondere
können
als Material für
die keramischen Leuchtstoffkörper
folgende Verbindungen gewählt
werden, wobei in der folgenden Notation links vom Doppelpunkt die
Wirtsverbindung und rechts vom Doppelpunkt ein oder mehrere Dotierelemente
aufgeführt
sind. Wenn chemische Elemente durch Kommata voneinander getrennt
und eingeklammert sind, können
sie wahlweise verwendet werden. Je nach gewünschter Lumineszenzeigenschaft der
Leuchtstoffkörper
können
eine oder auch mehrere der zur Auswahl gestellten Verbindungen herangezogen
werden:
BaAl2O4:Eu2+, BaAl2S4:Eu2+, BaB8O,3:Eu2+,
BaF2, BaFBr:Eu2+,
BaFCl:Eu2+, BaFCl:Eu2+,
Pb2+, BaGa2S4:Ce3+, BaGa2S4:Eu2+,
Ba2Li2Si2O7:Eu2+, Ba2Li2Si2O7:Sn2+, Ba2Li2Si2O7:Sn2+, Mn2+, BaMgAl,0O17:Ce3+, BaMgAl10O17:Eu2+,
BaMgAl10O17:Eu2+, Mn2+, Ba2Mg3F10:Eu2+, BaMg3F8:Eu2+, Mn2+, Ba2MgSi2O7:Eu2+,
BaMg2Si2O7:Eu2+, Ba5(PO4)3Cl:Eu2+, Ba5(PO4)3Cl:U, Ba3(PO4)2:Eu2+, BaS:Au, K, BaSO4:Ce3+, BaSO4:Eu2+, Ba2SiO4:Ce3+, Li+, Mn2+, Ba5SiO4Cl6:Eu2+, BaSi2O5:Eu2+, Ba2SiO4:Eu2+,
BaSi2O5:Pb2+, BaxSri1-xF2:Eu2+, BaSrMgSi2O7:Eu2+,
BaTiP2O7, (Ba, Ti)2P2O7:Ti, Ba3WO6:U, BaY2F8 Er3+,
Yb+, Be2SiO4:Mn2+, Bi4Ge3O12,
CaAl2O4:Ce3+, CaLa4O7:Ce3+, CaAl2O4:Eu2+,
CaAl2O4:Mn2+, CaAl4O7:Pb2+, Mn2+, CaAl2O4:Tb3+, Ca3Al2Si3O12:Ce3+, Ca3Al2Si3Oi2:Ce3+, Ca3Al2Si3O,2:Eu2+, Ca2B5O9Br:Eu2+, Ca2B5O9Cl:Eu2+, Ca2B5O9Cl:Pb2+, CaB2O4:Mn2+, Ca2B2O5:Mn2+, CaB2O4:Pb2+, CaB2P2O9:Eu2+, Ca5B2SiO10:Eu3+, Ca0.5Ba0.5Al12O19:Ce3+,
Mn2+, Ca2Ba3(PO4)3Cl:Eu2+, CaBr2:Eu2+ in SiO2, CaCl2:Eu2+ in SiO2, CaCl2:Eu2+, Mn2+ in SiO2, CaF2:Ce3+, CaF2:Ce3+, Mn2+, CaF2:Ce3+, Tb3+, CaF2:Eu2+, CaF2:Mn2+, CaF2:U, CaGa2O4:Mn2+, CaGa4O7:Mn2+,
CaGa2S4:Ce3+, CaGa2S4:Eu2+, CaGa2S4:Mn2+,
CaGa2S4:Pb2+, CaGeO3:Mn2+, CaI2:Eu2+ in SiO2, CaI2:Eu2+, Mn2+ in SiO2, CaLaBO4:Eu3+, CaLaB3O7:Ce3+,
Mn2+, Ca2La2BO6.5:Pb2+, Ca2MgSi2O7, Ca2MgSi2O7:Ce3+, CaMgSi2O6:Eu2+,
Ca3MgSi2O8:Eu2+, Ca2MgSi2O7:Eu2+, CaMgSi2O6:Eu2+, Mn2+, Ca2MgSi2O7:Eu2+,
Mn2+, CaMoO4, CaMoO4:Eu3+, CaO:Bi3+, CaO:Cd2+, CaO:Cu+, CaO:Eu3+, CaO:Eu3+, Na+, CaO:Mn2+, CaO:Pb2+, CaO:Sb3+, CaO:Sm3+, CaO:Tb3+, CaO:Tl, CaO.Zn2+,
Ca2P2O7:Ce3+, α-Ca3(PO4)2:Ce3+, β-Ca3(PO4)2:Ce3+, Ca5(PO4)3Cl:Eu2+,
Ca5(PO4)3Cl:Mn2+, Ca5(PO4)3Cl:Sb3+, Ca5(PO4)3Cl:Sn2+, β-Ca3(PO4)2:Eu2+, Mn2+, Ca5(PO4)3F:Mn2+, CaS(PO4)3F:Sb3+,
Ca3(PO4)3F:Sn2+, α-Ca3(PO4)2:Eu2+, β-Ca3(PO4)2:Eu2+, Ca2P2O7:Eu2+, Ca2P2O7:Eu2+, Mn2+, CaP2O6:Mn2+, α-Ca3(PO4)2:Pb2+, α-Ca3(PO4)2:Sn2+, β-Ca3(PO4)2:Sn2+, β-Ca2P2O7:Sn,
Mn, α-Ca3(PO4)2:Tr, CaS:Bi3+, CaS:Bi3+, Na,
CaS:Ce3+, CaS:Eu2+, CaS:Cu+, Na+, CaS:La3+, CaS:Mn2+, CaSO4:Bi, CaSO4:Ce3+, CaSO4:Ce3+, Mn2+, CaSO4:Eu2+, CaSO4:Eu2+, Mn2+, CaSO4:Pb2+, CaS:Pb2+, CaS:Pb2+, Cl, CaS:Pb2+,
Mn2+, CaS:Pr3+,
Pb2+, Cl, CaS:Sb3+, CaS:Sb3+, Na, CaS:Sm3+,
CaS:Sn2+, CaS:Sn2+,
F, CaS:Tb3+, CaS:Tb3+,
Cl, CaS:Y3+, CaS:Yb2+, CaS:Yb2+, Cl, CaSiO3:Ce3+, Ca3SiO4Cl2:Eu2+, Ca3SiO4Cl2:Pb2+, CaSiO3:Eu2+, CaSiO3:Mn2+, Pb, CaSiO3:Pb2+, CaSiO3:Pb2+, Mn2+, CaSiO3:Ti4+, CaSr2(PO4)2:Bi3+, β-(Ca,
Sr)3(PO4)2:Sn2+Mn2+, CaTi0.9Al0.1O3:Bi3+, CaTiO3:Eu3+, CaTiO3:Pr3+, Ca5(VO4)3Cl,
CaWO4, CaWO4:Pb2+, CaWO4:W, Ca3WO6:U, CaYAlO4:Eu3+, CaYBO4:Bi3+, CaYBO4:Eu3+, CaYB0.8O3.7:Eu3+, CaY2ZrO6:Eu3+, (Ca, Zn,
Mg)3(PO4)2:Sn, CeF3, (Ce,
Mg)BaAl11O18:Ce,
(Ce, Mg)SrAl11O18:Ce,
CeMgAl11O19:Ce:Tb, Cd2B6O11:Mn2+, CdS:Ag+, Cr,
CdS:In, CdS:In, CdS:In, Te, CdS:Te, CdWO4,
CsF, CsI, CsI:Na+, CsI:Tl, (ErCl3)0.25(BaCl2)0.75, GaN:Zn, Gd3Ga5O12:Cr3+, Gd3Ga5O12:Cr, Ce, GdNbO4:Bi3+, Gd2O2S:Eu3+, Gd2O2Pr3*,
Gd2O2S:Pr, Ce, F,
Gd2O2S:Tb3+, Gd2SiO5:Ce3+, KAl11O17:Tl+,
KGa11O17:Mn2+, K2La2Ti3O10:Eu, KMgF3:Eu2+, KMgF3:Mn2+, K2SiF6:Mn4+,
LaAl3B4O12:Eu3+, LaAlB2O6:Eu3+, LaAlO3:Eu3+, LaAlO3:Sm3+, LaAsO4:Eu3+, LaBr3:Ce3+, LaBO3:Eu3+, (La, Ce,
Tb)PO4:Ce:Tb, LaCl3:Ce3+, La2O3:Bi3+, LaOBr:Tb3+, LaOBr:Tm3+, LaOCl:Bi3+, LaOCl:Eu3+, LaOF:Eu3+, La2O3:Eu3+,
La2O3:Pr3+, La2O2S:Tb3+, LaPO4:Ce3+, LaPO4:Eu3+, LaSiO3Cl:Ce3+, LaSiO3Cl:Ce3+, Tb3+, LaVO4:Eu3+, La2W3O12:Eu3+, LiAlF4:Mn2+, LiAl5O8:Fe3+, LiAlO2:Fe3+, LiAlO2:Mn2+, LiAl5O8:Mn2+,
Li2CaP2O7:Ce3+, Mn2+, LiCeBa4Si4O14:Mn2+,
LiCeSrBa3Si4O14:Mn2+, LiInO2:Eu3+, LiInO2:Sm3+, LiLaO2:Eu3+, LuAlO3:Ce3+, (Lu, Gd)2SiO5:Ce3+,
Lu2SiO5:Ce3+, Lu2Si2O7:Ce3+, LuTaO4:Nb5+, Lu1-xYxAlO3:Ce3+, MgAl2O4:Mn2+, MgSrAl10O17:Ce, MgB2O4:Mn2+,
MgBa2(PO4)2:Sn2+, MgBa2(PO4)2:U,
MgBaP2O7:Eu2+, MgBaP2O7:Eu2+, Mn2+, MgBa3Si2O8:Eu2+,
MgBa(SO4)2:Eu2+, Mg3Ca3(PO4)4:Eu2+, MgCaP2O7:Mn2+, Mg2Ca(SO4)3:Eu2+, Mg2Ca(SO4)3:Eu2+,
Mn2, MgCeAlnO19:Tb3+, Mg4(F)GeO6:Mn2+, Mg4(F)(Ge, Sn)O6:Mn2+, MgF2:Mn2+, MgGa2O4:Mn2+, Mg8Ge2O11F2:Mn4+, MgS:Eu2+, MgSiO3:Mn2+, Mg2SiO4:Mn2+, Mg3SiO3F4:Ti4+, MgSO4:Eu2+, MgSO4:Pb2+, MgSrBa2Si2O7:Eu2+,
MgSrP2O7:Eu2+, MgSr5(PO4)4:Sn2+,
MgSr3Si2O8:Eu2+, Mn2+, Mg2Sr(SO4)3:Eu2+,
Mg2TiO4:Mn4+, MgWO4, MgYBO4:Eu3+, Na3Ce(PO4)2:Tb3+, NaI:Tl, Na1.23K0.42Eu0.12TiSi4O11:Eu3+, Na1.23K0.42Eu0.12TiSi5O13·xH2O:Eu3+, Na1.29K0.46Er0.08TiSi4O11:Eu3+, Na2Mg3Al2Si2O10:Tb, Na(Mg2-xMnx)LiSi4O10F2:Mn,
NaYF4:Er3+, Yb3+, NaYO2:Eu3+, P46 (70%) + P47 (30%), SrAl12O19:Ce3+, Mn2+, SrAl2O4:Eu2+, SrAl4O7:Eu3+,
SrAl12O19:Eu2+, SrAl2S4:Eu2+, Sr2B5O9Cl:Eu2+, SrB4O7:Eu2+(F, Cl, Br), SrB4O7:Pb2+,
SrB4O7:Pb2+, Mn2+, SrB8O13:Sm2+, SrxBayClzAl2O4-z/2:Mn2+, Ce3+, SrBaSiO4:Eu2+, Sr(Cl, Br,
I)2:Eu2+ in SiO2, SrCl2:Eu2+ in SiO2, Sr5Cl(PO4)3:Eu, SrwFxB4O6.5:Eu2+, SrwFxByOz:Eu2+, Sm2+, SrF2:Eu2+, SrGa12O19:Mn2+, SrGa2S4:Ce3+,
SrGa2S4:Eu2+, SrGa2S4:Pb2+, SrIn2O4:Pr3+,
Al3+, (Sr, Mg)3(PO4)2:Sn, SrMgSi2O6:Eu2+,
Sr2MgSi2O7:Eu2+, Sr3MgSi2O8:Eu2+, SrMoO4:U, SrO·3B2O3:Eu2+,
Cl, β-SrO·3B2O3:Pb2+, β-SrO·3B2O3:Pb2+,
Mn2+, α-SrO·3B2O3:Sm2+, Sr6P5BO20:Eu,
Sr5(PO4)3Cl:Eu2+, Sr5(PO4)3Cl:EU2+, Pr3+, Sr5(PO4)3Cl:Mn2+, Sr5(PO4)3Cl:Sb3+, Sr2P2O7:Eu2+, β-Sr3(PO4)2:Eu2+, Sr5(PO4)3F:Mn2+, Sr5(PO4)3F:Sb3+, Sr5(PO4)3F:Sb3+,
Mn2+, Sr5(PO4)3F:Sn2+,
Sr2P2O7:Sn2+, β-Sr3(PO4)2:Sn2+, β-Sr3(PO4)2:Sn2+, Mn2+(Al), SrS:Ce3+, SrS:Eu2+, SrS:Mn2+, SrS:Cu+, Na,
SrSO4:Bi, SrSO4:Ce3+, SrSO4:Eu2+, SrSO4:Eu2+, Mn2+, Sr5Si4O10Cl6:Eu2+, Sr2SiO4:Eu2+,
SrTiO3:Pr3+, SrTiO3:Pr3+, Al3+, Sr3WO6:U, SrY2O3:Eu3+, ThO2:Eu3+, ThO2:Pr3+, ThO2:Tb3+, YAl3B4O12:Bi3+, YAl3B4O12:Ce3+, YAl3B4O12:Ce3+, Mn, YAl3B4O12:Ce3+,
Tb3+, YAl3B4O12:Eu3+, YAl3B4O12:Eu3+, Cr3+, YAl3B4O12:Th4+, Ce3+, Mn2+, YAlO3:Ce3+, Y3Al5O12:Ce3+, (Y, Gd,
Lu, Tb)3(Al, Ga)5O12:(Ce, Pr, Sm), Y3Al5O12:Cr3+, YAlO3:Eu3+, Y3Al5O12:Eu3r, Y4Al2O9:Eu3+, Y3Al5O12:Mn4+, YAlO3:Sm3+, YAlO3:Tb3+, Y3Al5O12:Tb3+, YAsO4:Eu3+, YBO3:Ce3+, YBO3:Eu3+, YF3:Er3+, Yb3+, YF3:Mn2+, YF3:Mn2+, Th4+, YF3:Tm3+, Yb3+, (Y, Gd)BO3:Eu,
(Y, Gd)BO3:Tb, (Y, Gd)2O3:Eu3+, Y1.34Gd0.60O3(Eu, Pr), Y2O3:Bi3+, YOBr:Eu3+, Y2O3:Ce, Y2O3:Er3+,
Y2O3:Eu3+(YOE),
Y2O3:Ce3+,
Tb3+, YOCl:Ce3+,
YOCl:Eu3+, YOF:Eu3+,
YOF:Tb3+, Y2O3:Ho3+, Y2O2S:Eu3+,
Y2O2S:Pr3+, Y2O2S:Tb3+, Y2O3:Tb3+, YPO4:Ce3+, YPO4:Ce3+, Tb3+, YPO4:Eu3+, YPO4:Mn2+, Th4+, YPO4:V5+, Y(P, V)O4:Eu,
Y2SiO5:Ce3+, YTaO4, YTaO4:Nb5+, YVO4:Dy3+, YVO4:Eu3+, ZnAl2O4:Mn2+, ZnB2O4:Mn2+,
ZnBa2S3:Mn2+, (Zn, Be)2SiO4:Mn2+, Zn0.4Cd0.6S:Ag, Zn0.6Cd0.4S:Ag, (Zn,
Cd)S:Ag, Cl, (Zn, Cd)S:Cu, ZnF2:Mn2+, ZnGa2O4, ZnGa2O4:Mn2+, ZnGa2S4:Mn2+,
Zn2GeO4:Mn2+, (Zn, Mg)F2:Mn2+, ZnMg2(PO4)2:Mn2+,
(Zn, Mg)3(PO4)2:Mn2+, ZnO:Al3+, Ga3+, ZnO:Bi3+, ZnO:Ga3+, ZnO:Ga,
ZnO-CdO:Ga, ZnO:S, ZnO:Se, ZnO:Zn, ZnS:Ag+,
Cl–,
ZnS:Ag, Cu, Cl, ZnS:Ag, Ni, ZnS:Au, In, ZnS-CdS (25-75), ZnS-CdS
(50-50), ZnS-CdS (75-25), ZnS-CdS:Ag, Br, Ni, ZnS-CdS:Ag+,Cl, ZnS-CdS:Cu, Br, ZnS-CdS:Cu, I, ZnS:Cl–,
ZnS:Eu2+, ZnS:Cu, ZnS:Cu+, Al3+, ZnS:Cu+, Cl–,
ZnS:Cu, Sn, ZnS:Eu2+, ZnS:Mn2+, ZnS:Mn,
Cu, ZnS:Mn2+, Te2+,
ZnS:P, ZnS:P3–,
Cl–, ZnS:Pb2+, ZnS:Pb2+, Cl–,
ZnS:Pb, Cu, Zn3(PO4)2:Mn2+, Zn2SiO4:Mn2+,
Zn2SiO4:Mn2+, As5+, Zn2SiO4:Mn, Sb2O2, Zn2SiO4:Mn2+, P, Zn2SiO4:Ti4+,
ZnS:Sn2+, ZnS:Sn, Ag, ZnS:Sn2+,
Li+, ZnS:Te, Mn, ZnS-ZnTe:Mn2+, ZnSe:Cu+, Cl, ZnWO4 In particular, the following compounds can be selected as the material for the ceramic phosphor bodies, with one or more doping elements being listed in the following notation to the left of the colon and the host compound to the right of the colon. When chemical elements are separated and bracketed by commas, they can optionally be used. Depending on the desired luminescence property of the phosphor body, one or more of the compounds selected can be used:
BaAl 2 O 4 : Eu 2+ , BaAl 2 S 4 : Eu 2+ , BaB 8 O , 3 : Eu 2+ , BaF 2 , BaFBr: Eu 2+ , BaFCl: Eu 2+ , BaFCl: Eu 2+ , Pb 2+ , BaGa 2 S 4 : Ce 3+ , BaGa 2 S 4 : Eu 2+ , Ba 2 Li 2 Si 2 O 7 : Eu 2+ , Ba 2 Li 2 Si 2 O 7 : Sn 2+ , Ba 2 Li 2 Si 2 O 7 : Sn 2+ , Mn 2+ , BaMgAl , O 17 : Ce 3+ , BaMgAl 10 O 17 : Eu 2+ , BaMgAl 10 O 17 : Eu 2+ , Mn 2+ , Ba 2 Mg 3 F 10 : Eu 2+ , BaMg 3 F 8 : Eu 2+ , Mn 2+ , Ba 2 MgSi 2 O 7 : Eu 2+ , BaMg 2 Si 2 O 7 : Eu 2+ , Ba 5 (PO 4 ) 3 Cl : Eu 2+ , Ba 5 (PO 4 ) 3 Cl: U, Ba 3 (PO 4 ) 2 : Eu 2+ , BaS: Au, K, BaSO 4 : Ce 3+ , BaSO 4 : Eu 2+ , Ba 2 SiO 4 : Ce 3+ , Li + , Mn 2+ , Ba 5 SiO 4 Cl 6 : Eu 2+ , BaSi 2 O 5 : Eu 2+ , Ba 2 SiO 4 : Eu 2+ , BaSi 2 O 5 : Pb 2 + , Ba x Sri 1-x F 2 : Eu 2+ , BaSrMgSi 2 O 7 : Eu 2+ , BaTiP 2 O 7 , (Ba, Ti) 2 P 2 O 7 : Ti, Ba 3 WO 6 : U, BaY 2 F 8 Er 3+ , Yb + , Be 2 SiO 4 : Mn 2+ , Bi 4 Ge 3 O 12 , CaAl 2 O 4 : Ce 3+ , CaLa 4 O 7 : Ce 3+ , CaAl 2 O 4 : Eu 2+ , CaAl 2 O 4 : Mn 2+ , CaAl 4 O 7 : Pb 2+ , Mn 2+ , CaAl 2 O 4 : Tb 3+ , Ca 3 Al 2 Si 3 O 12 : Ce 3+ , Ca 3 Al 2 Si 3 Oi 2 : Ce 3+ , Ca 3 Al 2 Si 3 O , 2 : Eu 2+ , Ca 2 B 5 O 9 Br: Eu 2+ , Ca 2 B 5 O 9 Cl: Eu 2+ , Ca 2 B 5 O 9 Cl: Pb 2+ , CaB 2 O 4 : Mn 2+ , Ca 2 B 2 O 5 : Mn 2+ , CaB 2 O 4 : Pb 2+ , CaB 2 P 2 O 9 : Eu 2+ , Ca 5 B 2 SiO 10 : Eu 3+ , Ca 0.5 Ba 0.5 Al 12 O 19 : Ce 3+ , Mn 2+ , Ca 2 Ba 3 (PO 4) 3 Cl: Eu 2+ , CaBr 2 : Eu 2+ in SiO 2 , CaCl 2 : Eu 2+ in SiO 2 , CaCl 2 : Eu 2+ , Mn 2+ in SiO 2 , CaF 2 : Ce 3+ , CaF 2 : Ce 3+ , Mn 2+ , CaF 2 : Ce 3+ , Tb 3+ , CaF 2 : Eu 2+ , CaF 2 : Mn 2+ , CaF 2 : U, CaGa 2 O 4 : Mn 2+ , CaGa 4 O 7 : Mn 2+ , CaGa 2 S 4 : Ce 3+ , CaGa 2 S 4 : Eu 2+ , CaGa 2 S 4 : Mn 2+ , CaGa 2 S 4 : Pb 2+ , CaGeO 3 : Mn 2+ , CaI 2 : Eu 2+ in SiO 2 , CaI 2 : Eu 2+ , Mn 2+ in SiO 2 , CaLaBO 4 : Eu 3+ , CaLaB 3 O 7 : Ce 3+ , Mn 2+ , Ca 2 La 2 BO 6.5 : Pb 2+ , Ca 2 MgSi 2 O 7 , Ca 2 MgSi 2 O. 7 : Ce 3+ , CaMgSi 2 O 6 : Eu 2+ , Ca 3 MgSi 2 O 8 : Eu 2+ , Ca 2 MgSi 2 O 7 : Eu 2+ , CaMgSi 2 O 6 : Eu 2+ , Mn 2+ , Ca 2 MgSi 2 O 7 : Eu 2+ , Mn 2+ , CaMoO 4 , CaMoO 4 : Eu 3+ , CaO: Bi 3+ , CaO: Cd 2+ , CaO: Cu + , CaO: Eu 3+ , Ca O: Eu 3+ , Na + , CaO: Mn 2+ , CaO: Pb 2+ , CaO: Sb 3+ , CaO: Sm 3+ , CaO: Tb 3+ , CaO: Tl, CaO.Zn 2+ , Ca 2 P 2 O 7 : Ce 3+ , α-Ca 3 (PO 4 ) 2 : Ce 3+ , β-Ca 3 (PO 4 ) 2 : Ce 3+ , Ca 5 (PO 4 ) 3 Cl: Eu 2+ , Ca 5 (PO 4 ) 3 Cl: Mn 2+ , Ca 5 (PO 4 ) 3 Cl: Sb 3+ , Ca 5 (PO 4 ) 3 Cl: Sn 2+ , β-Ca 3 (PO 4 ) 2 : Eu 2+ , Mn 2+ , Ca 5 (PO 4 ) 3 F: Mn 2+ , Ca S (PO 4 ) 3 F: Sb 3+ , Ca 3 (PO 4 ) 3 F: Sn 2+ , α-Ca 3 (PO 4 ) 2 : Eu 2+ , β-Ca 3 (PO 4 ) 2 : Eu 2+ , Ca 2 P 2 O 7 : Eu 2+ , Ca 2 P 2 O 7 : Eu 2+ , Mn 2+ , CaP 2 O 6 : Mn 2+ , α-Ca 3 (PO 4 ) 2 : Pb 2+ , α-Ca 3 (PO 4 ) 2 : Sn 2+ , β-Ca 3 (PO 4 ) 2 : Sn 2+ , β-Ca 2 P 2 O 7 : Sn, Mn , α-Ca 3 (PO 4 ) 2 : Tr, CaS: Bi 3+ , CaS: Bi 3+ , Na, CaS: Ce 3+ , CaS: Eu 2+ , CaS: Cu + , Na + , CaS: La 3+ , CaS: Mn 2+ , CaSO 4 : Bi, CaSO 4 : Ce 3+ , CaSO 4 : Ce 3+ , Mn 2+ , CaSO 4 : Eu 2+ , CaSO 4 : Eu 2+ , Mn 2+ , CaSO 4 : Pb 2+ , CaS: Pb 2+ , CaS: Pb 2+ , Cl, CaS: Pb 2+ , Mn 2+ , CaS: Pr 3+ , Pb 2+ , Cl, CaS: Sb 3+ , CaS : Sb 3+ , Na, CaS: Sm 3+ , CaS: Sn 2+ , CaS: Sn 2+ , F, CaS: Tb 3+ , CaS: Tb 3+ , Cl, CaS: Y 3+ , CaS: Yb 2+ , CaS: Yb 2+ , Cl, CaSiO 3 : Ce 3+ , Ca 3 SiO 4 Cl 2 : Eu 2+ , Ca 3 SiO 4 Cl 2 : Pb 2+ , CaSiO 3 : Eu 2+ , CaSiO 3 : Mn 2+ , Pb, CaSiO 3 : Pb 2+ , CaSiO 3 : Pb 2+ , Mn 2+ , CaSiO 3 : Ti 4+ , CaSr 2 (PO 4 ) 2 : Bi 3+ , β- (Ca, Sr) 3 (PO 4 ) 2 : Sn 2+ Mn 2+ , CaTi 0.9 Al 0.1 O 3 : Bi 3+ , CaTiO 3 : Eu 3+ , CaTiO 3 : Pr 3+ , Ca 5 (VO 4 ) 3 Cl, CaWO 4 , CaWO 4 : Pb 2+ , CaWO 4 : W, Ca 3 WO 6 : U, CaYAlO 4 : Eu 3+ , CaYBO 4 : Bi 3+ , CaYBO 4 : Eu 3+ , CaYB 0.8 O 3.7 : Eu 3+ , CaY 2 ZrO 6 : Eu 3+ , (Ca, Zn, Mg) 3 (PO 4 ) 2 : Sn, CeF 3 , (Ce, Mg) BaAl 11 O 18 : Ce, (Ce, Mg) SrAl 11 O 18 : Ce, CeMgAl 11 O 19 : Ce: Tb, Cd 2 B 6 O 11 : Mn 2+ , CdS: Ag + , Cr, CdS: In, CdS: In , CdS: In, Te, CdS: Te, CdWO 4 , CsF, CsI, CsI: Na + , CsI: Tl, (ErCl 3 ) 0.25 (BaCl 2 ) 0.75 , GaN: Zn, Gd 3 Ga 5 O 12 : Cr 3+ , Gd 3 Ga 5 O 12 : Cr, Ce, GdNbO 4 : Bi 3+ , Gd 2 O 2 S: Eu 3+ , Gd 2 O 2 Pr 3 *, Gd 2 O 2 S: Pr, Ce, F , Gd 2 O 2 S: Tb 3+ , Gd 2 SiO 5 : Ce 3+ , KAl 11 O 17 : Tl + , KGa 11 O 17 : Mn 2+ , K 2 La 2 Ti 3 O 10 : Eu, KMgF 3 : Eu 2+ , KMgF 3 : Mn 2+ , K 2 SiF 6 : Mn 4+ , LaAl 3 B 4 O 12 : Eu 3+ , LaAlB 2 O 6 : Eu 3+ , LaAlO 3 : Eu 3+ , LaAlO 3 : Sm 3+ , LaAsO 4 : Eu 3+ , LaBr 3 : Ce 3+ , LaBO 3 : Eu 3+ , (La, Ce, Tb) PO 4 : Ce: Tb, LaCl 3 : Ce 3+ , La 2 O 3 : Bi 3+ , LaOBr: Tb 3+ , LaOBr: Tm 3+ , LaOCl: Bi 3+ , LaOCl: Eu 3+ , LaOF: Eu 3+ , La 2 O 3 : Eu 3+ , La 2 O 3 Pr 3+ , La 2 O 2 S: Tb 3+ , LaPO 4 : Ce 3+ , LaPO 4 : Eu 3+ , LaSiO 3 Cl: Ce 3+ , LaSiO 3 Cl: Ce 3+ , Tb 3+ , LaVO 4 : Eu 3+ , La 2 W 3 O 12 : Eu 3+ , LiAlF 4 : Mn 2+ , LiAl 5 O 8 : Fe 3+ , LiAlO 2 : Fe 3+ , LiAlO 2 : Mn 2+ , LiAl 5 O. 8 : Mn 2+ , Li 2 CaP 2 O 7 : Ce 3+ , Mn 2+ , LiCeBa 4 Si 4 O 14 : Mn 2+ , LiCeSrBa 3 Si 4 O 14 : Mn 2+ , LiInO 2 : Eu 3+ , LiInO 2 : Sm 3+ , LiLaO 2 : Eu 3+ , LuAlO 3 : Ce 3+ , (Lu, Gd) 2 SiO 5 : Ce 3+ , Lu 2 SiO 5 : Ce 3+ , Lu 2 Si 2 O 7 : Ce 3+ , LuTaO 4 : Nb 5+ , Lu 1-x Y x AlO 3 : Ce 3+ , MgAl 2 O 4 : Mn 2+ , MgSrAl 10 O 17 : Ce, MgB 2 O 4 : Mn 2+ , MgBa 2 (PO 4 ) 2 : Sn 2+ , MgBa 2 (PO 4 ) 2 : U, MgBaP 2 O 7 : Eu 2+ , MgBaP 2 O 7 : Eu 2+ , Mn 2+ , MgBa 3 Si 2 O 8 : Eu 2+ , MgBa (SO 4 ) 2 : Eu 2+ , Mg 3 Ca 3 (PO 4 ) 4 : Eu 2+ , MgCaP 2 O 7 : Mn 2+ , Mg 2 Ca (SO 4 ) 3 : Eu 2+ , Mg 2 Ca (SO 4 ) 3 : Eu 2+ , Mn 2 , MgCeAl n O 19 : Tb 3+ , Mg 4 (F) GeO 6 : Mn 2+ , Mg 4 (F) (Ge, Sn) O 6 : Mn 2+ , MgF 2 : Mn 2+ , MgGa 2 O 4 : Mn 2+ , Mg 8 Ge 2 O 11 F 2 : Mn 4+ , MgS: Eu 2+ , MgSiO 3 : Mn 2+ , Mg 2 SiO 4 : Mn 2 + , Mg 3 SiO 3 F 4 : Ti 4+ , MgSO 4 : Eu 2+ , MgSO 4 : Pb 2+ , MgSrBa 2 Si 2 O 7 : Eu 2+ , MgSrP 2 O 7 : Eu 2+ , MgSr 5 ( PO 4 ) 4 : Sn 2+ , MgSr 3 Si 2 O 8 : Eu 2+ , Mn 2+ , Mg 2 Sr (SO 4 ) 3 : Eu 2+ , Mg 2 TiO 4 : Mn 4+ , MgWO 4 , MgYBO 4 : Eu 3+ , Na 3 Ce (PO 4 ) 2 : Tb 3+ , NaI: Tl, Na 1.23 K 0.42 Eu 0.12 TiSi 4 O 11 : Eu 3+ , Na 1.23 K 0.42 Eu 0.12 TiSi 5 O 13 · xH 2 O: Eu 3+ , Na 1.29 K 0.46 Er 0.08 TiSi 4 O 11 : Eu 3+ , Na 2 Mg 3 Al 2 Si 2 O 10 : Tb, Na (Mg 2-x Mn x ) LiSi 4 O 10 F 2 : Mn, NaYF 4 : Er 3+ , Yb 3+ , NaYO 2 : Eu 3+ , P46 (70%) + P47 (30%), SrAl 12 O 19 : Ce 3+ , Mn 2+ , SrAl 2 O 4 : Eu 2+ , SrAl 4 O 7 : Eu 3+ , SrAl 12 O 19 : Eu 2+ , SrAl 2 S 4 : Eu 2+ , Sr 2 B 5 O 9 Cl: Eu 2+ , SrB 4 O 7 : Eu 2+ (F, Cl, Br), SrB 4 O 7 : Pb 2+ , SrB 4 O 7 : Pb 2+ , Mn 2+ , SrB 8 O 13 : Sm 2+ , Sr x Ba y Cl z Al 2 O. 4-z / 2 : Mn 2+ , Ce 3+ , SrBaSiO 4 : Eu 2+ , Sr (Cl, Br, I) 2 : Eu 2+ in SiO 2 , SrCl 2 : Eu 2+ in SiO 2 , Sr 5 Cl (PO 4 ) 3 : Eu, Sr w F x B 4 O 6.5 : Eu 2+ , Sr w F x B y O z : Eu 2+ , Sm 2+ , SrF 2 : Eu 2+ , SrGa 12 O 19 : Mn 2+ , SrGa 2 S 4 : Ce 3+ , SrGa 2 S 4 : Eu 2+ , SrGa 2 S 4 : Pb 2+ , SrIn 2 O 4 : Pr 3+ , Al 3+ , (Sr, Mg) 3 (PO 4 ) 2 : Sn, SrMgSi 2 O 6 : Eu 2+ , Sr 2 MgSi 2 O 7 : Eu 2+ , Sr 3 MgSi 2 O 8 : Eu 2+ , SrMoO 4 : U, SrO · 3B 2 O 3 : Eu 2+ , Cl, β-SrO · 3B 2 O 3 : Pb 2+ , β-SrO · 3B 2 O 3 : Pb 2+ , Mn 2+ , α-SrO · 3B 2 O 3 : Sm 2+ , Sr 6 P 5 BO 20 : Eu, Sr 5 (PO 4 ) 3 Cl: Eu 2+ , Sr 5 (PO 4 ) 3 Cl: EU 2+ , Pr 3+ , Sr 5 (PO 4 ) 3 Cl: Mn 2+ , Sr 5 (PO 4 ) 3 Cl: Sb 3+ , Sr 2 P 2 O 7 : Eu 2+ , β-Sr 3 (PO 4 ) 2 : Eu 2+ , Sr 5 (PO 4 ) 3 F: Mn 2+ , Sr 5 (PO 4 ) 3 F: Sb 3+ , Sr 5 (PO 4 ) 3 F: Sb 3+ , Mn 2+ , Sr 5 (PO 4 ) 3 F: Sn 2 + , Sr 2 P 2 O 7 : Sn 2+ , β-Sr 3 (PO 4 ) 2 : Sn 2+ , β-Sr 3 (PO 4 ) 2 : Sn 2+ , Mn 2+ (Al), SrS: Ce 3+ , SrS: Eu 2+ , SrS: Mn 2+ , SrS: Cu + , Na, SrSO 4 : Bi, SrSO 4 : Ce 3+ , SrSO 4 : Eu 2+ , SrSO 4 : Eu 2+ , Mn 2+ , Sr 5 Si 4 O 10 Cl 6 : Eu 2+ , Sr 2 SiO 4 : Eu 2+ , SrTiO 3 : Pr 3+ , SrTiO 3 : Pr 3+ , Al 3+ , Sr 3 WO 6 : U, SrY 2 O 3 : Eu 3+ , ThO 2 : Eu 3+ , ThO 2 : Pr 3+ , ThO 2 : Tb 3+ , YAl 3 B 4 O 12 : Bi 3+ , YAl 3 B 4 O 12 : Ce 3+ , YAl 3 B 4 O 12 : Ce 3+ , Mn, YAl 3 B 4 O 12 : Ce 3+ , Tb 3+ , YAl 3 B 4 O 12 : Eu 3+ , YAl 3 B 4 O 12 : Eu 3+ , Cr 3+ , YAl 3 B 4 O 12 : Th 4+ , Ce 3+ , Mn 2+ , YAlO 3 : Ce 3+ , Y 3 Al 5 O 12 : Ce 3+ , (Y, Gd, Lu, Tb) 3 (Al, Ga) 5 O 12 : (Ce, Pr, Sm), Y 3 Al 5 O 12 : Cr 3+ , YAlO 3 : Eu 3+ , Y 3 Al 5 O 12 : Eu 3r , Y 4 Al 2 O 9 : Eu 3+ , Y 3 Al 5 O 12 : Mn 4+ , YAlO 3 : Sm 3+ , YAlO 3 : Tb 3+ , Y 3 Al 5 O 12 : Tb 3+ , YAsO 4 : Eu 3+ , YBO 3 : Ce 3+ , YBO 3 : Eu 3+ , YF 3 : Er 3+ , Yb 3+ , YF 3 : Mn 2+ , YF 3 : Mn 2+ , Th 4+ , YF 3 : Tm 3+ , Yb 3+ , (Y, Gd) BO 3 : Eu, (Y, Gd) BO 3 : Tb, (Y, Gd) 2 O 3 : Eu 3+ , Y 1.34 Gd 0.60 O 3 (Eu, Pr), Y 2 O 3 : Bi 3+ , YOBr: Eu 3+ , Y 2 O 3 : Ce, Y 2 O 3 : Er 3+ , Y 2 O 3 : Eu 3+ (YOE), Y 2 O 3 : Ce 3+ , Tb 3+ , YOCl: Ce 3+ , YOCl: Eu 3+ , YOF: Eu 3+ , YOF: Tb 3+ , Y 2 O 3 : Ho 3+ , Y 2 O 2 S: Eu 3+ , Y 2 O 2 S: Pr 3+ , Y 2 O 2 S: Tb 3+ , Y 2 O 3 : Tb 3+ , YPO 4 : Ce 3+ , YPO 4 : Ce 3+ , Tb 3+ , YPO 4 : Eu 3+ , YPO 4 : Mn 2+ , Th 4+ , YPO 4 : V 5 + , Y (P, V) O 4 : Eu, Y 2 SiO 5 : Ce 3+ , YTaO 4 , YTaO 4 : Nb 5+ , YVO 4 : Dy 3+ , YVO 4 : Eu 3+ , ZnAl 2 O 4 : Mn 2+ , ZnB 2 O 4 : Mn 2+ , ZnBa 2 S 3 : Mn 2+ , (Zn, Be) 2 SiO 4 : Mn 2+ , Zn 0.4 Cd 0.6 S: Ag, Zn 0.6 Cd 0.4 S: Ag, (Zn, Cd) S: Ag, Cl, (Zn, Cd) S: Cu, ZnF 2 : Mn 2+ , ZnGa 2 O 4 , ZnGa 2 O 4 : Mn 2+ , ZnGa 2 S 4 : Mn 2 + , Zn 2 GeO 4 : Mn 2+ , (Zn, Mg) F 2 : Mn 2+ , ZnMg 2 (PO 4 ) 2 : Mn 2+ , (Zn, Mg) 3 (PO 4 ) 2 : Mn 2+ , ZnO: Al 3+ , Ga 3+ , ZnO: Bi 3+ , ZnO: Ga 3+ , ZnO: Ga, ZnO-CdO: Ga, ZnO: S, ZnO: Se, ZnO: Zn, ZnS: Ag + , Cl - , ZnS: Ag, Cu, Cl, ZnS: Ag, Ni, ZnS: Au, In, ZnS-CdS (25-75), ZnS-CdS (50-50), ZnS-CdS (75-25), ZnS-CdS: Ag, Br, Ni, ZnS-CdS: Ag + , Cl, ZnS-CdS: Cu, Br, ZnS-CdS: Cu, I, ZnS: Cl - , ZnS: Eu 2+ , ZnS: Cu, ZnS: Cu + , Al 3+ , ZnS: Cu + , Cl - , ZnS: Cu, Sn, ZnS: Eu 2+ , ZnS: Mn 2+ , ZnS: Mn, Cu, ZnS: Mn 2+ , Te 2+ , ZnS: P, ZnS: P 3 , Cl - , ZnS: Pb 2+ , ZnS: Pb 2+ , Cl - , ZnS: Pb, Cu, Zn 3 (PO 4 ) 2 : Mn 2+ , Zn 2 SiO 4 : Mn 2+ , Zn 2 SiO 4 : Mn 2+ , As 5+ , Zn 2 SiO 4 : Mn, Sb 2 O 2 , Zn 2 SiO 4 : Mn 2+ , P, Zn 2 SiO 4 : Ti 4+ , ZnS: Sn 2+ , ZnS: Sn, Ag, ZnS: Sn 2+ , Li + , ZnS: Te, Mn, ZnS-ZnTe: Mn 2+ , ZnSe: Cu + , Cl, ZnWO 4
Vorzugsweise
besteht der keramische Leuchtstoffkörper aus mindestens einem der
folgenden Leuchtstoffmaterialien:
(Y, Gd, Lu, Tb)3(Al,
Ga)5O12:Ce, (Ca,
Sr, Ba)2SiO4:Eu, YSiO2N:Ce, Y2Si3O3N4:Ce,
Gd2Si3O3N4:Ce, (Y, Gd, Tb, Lu)3Al5-xSixO12-xNx:Ce, BaMgAl10O17:Eu, SrAl2O4:Eu, Sr4Al14O25:Eu, (Ca, Sr,
Ba)Si2N2O2:Eu, SrSiAl2O3N2:Eu, (Ca, Sr,
Ba)2Si5N8:Eu, CaAlSiN3:Eu, Molybdate,
Wolframate, Vanadate, Gruppe-III Nitride, Oxide, jeweils einzeln
oder Mischungen davon mit einem oder mehreren Aktivatorionen wie
Ce, Eu, Mn, Cr und/oder Bi.Preferably, the ceramic phosphor body consists of at least one of the following the phosphor materials:
(Y, Gd, Lu, Tb) 3 (Al, Ga) 5 O 12 : Ce, (Ca, Sr, Ba) 2 SiO 4 : Eu, YSiO 2 N: Ce, Y 2 Si 3 O 3 N 4 : Ce , Gd 2 Si 3 O 3 N 4 : Ce, (Y, Gd, Tb, Lu) 3 Al 5-x Si x O 12-x N x : Ce, BaMgAl 10 O 17 : Eu, SrAl 2 O 4 : Eu , Sr 4 Al 14 O 25 : Eu, (Ca, Sr, Ba) Si 2 N 2 O 2 : Eu, SrSiAl 2 O 3 N 2 : Eu, (Ca, Sr, Ba) 2 Si 5 N 8 : Eu, CaAlSiN 3 : Eu, molybdate, tungstates, vanadates, group III nitrides, oxides, individually or mixtures thereof with one or more activator ions such as Ce, Eu, Mn, Cr and / or Bi.
Der keramische Leuchtstoffkörper kann z.B. als Plättchen in Dicken von einigen 100 nm bis zu etwa 500 μm grosstechnisch hergestellt werden. Die Plättchenausdehnung (Länge × Breite) ist von der Anordnung abhängig. Bei direkter Aufbringung auf den Chip ist die Größe des Plättchens gemäß der Chipausdehnung (von ca. 100 μm·100 μm bis zu mehreren mm2) mit einem gewissen Übermaß von ca. 10%-zu 30% der Chipoberfläche bei geeigneter Chipanordnung (z.B. Flip-Chip-Anordnung) oder entsprechend zu wählen. Wird das Leuchtstoffplättchen über einer fertigen LED angebracht, so ist der austretende Lichtkegel vollständig vom Plättchen zu erfassen.The ceramic phosphor body can be produced industrially, for example, as platelets in thicknesses of a few 100 nm up to about 500 μm. The platelet extent (length x width) depends on the arrangement. When applied directly onto the chip, the size of the wafer in accordance with the chip size (up to several mm 2 of approximately 100 microns x 100 microns) (with a certain excess of approximately 10% -to 30% of the chip surface at a suitable die assembly, for example, Flip Chip arrangement) or to choose accordingly. If the phosphor plate is placed over a finished LED, the emerging cone of light is completely covered by the plate.
Die Seitenflächen des keramischen Leuchtstoffkörpers können mit einem Leicht- oder Edelmetall, vorzugsweise Aluminium oder Silber verspiegelt werden. Die Verspiegelung bewirkt, dass kein Licht lateral aus dem Leuchtstoffkörper austritt. Lateral austretendes Licht kann den aus der LED auszukoppelnden Lichtstrom verringern. Die Verspiegelung des keramischen Leuchtstoffkörpers erfolgt in einem Prozessschritt nach der isostatischen Verpressung zu Stangen oder Plättchen, wobei vor der Verspiegelung eventuell ein Schneider der Stangen oder Plättchen in die erforderliche Größe erfolgen kann. Die Seitenflächen werden hierzu z.B. mit einer Lösung aus Silbernitrat und Glucose benetzt und anschließend bei erhöhter Temperatur einer Ammoniak-Atmosphäre ausgesetzt. Hierbei bildet sich z.B. ein silberner Belag auf den Seitenflächen aus.The faces of the ceramic phosphor body can with a light or precious metal, preferably aluminum or silver be mirrored. The mirroring causes no light to be lateral from the phosphor body exit. Lateral exiting light can be coupled out of the LED Reduce the luminous flux. The mirroring of the ceramic phosphor body takes place in a process step after isostatic pressing into bars or platelets, where before the mirroring may be a tailor of the rods or platelets into the required size can. The side surfaces For this purpose, e.g. with a solution out Wetted silver nitrate and glucose and then at elevated temperature an ammonia atmosphere exposed. Here, e.g. a silver coating on the faces out.
Alternativ
bieten sich auch stromlose Metallisierungsverfahren an, siehe beispielsweise
Um
die Einkopplung des elektrolumineszenten blauen oder UV-Lichts des
LED Chips in die Keramik zu erhöhen,
muss die dem Chip zugewandte Seite eine möglichst kleine Oberfläche besitzen.
Hier besteht ein entscheidender Vorteil des Keramikleuchtstoffes
gegenüber
von Leuchtstoffpartikeln: Partikel weisen eine große Oberfläche auf
und streuen einen hohen Anteil des auf sie auftreffenden Lichtes
wieder zurück.
Dieses wird vom LED Chip und den vorhandenen Bestandteilen absorbiert.
Dadurch sinkt die erzielbare Lichtemission der LED. Die keramische
Leuchtstoffkörper
kann, insbesondere bei einer Flip-Chip-Anordnung, direkt auf den
Chip bzw. das Substrat aufgebracht werden. Falls der keramische
Leuchtstoffkörper
weniger bzw. nicht viel mehr als eine Lichtwellenlänge von
der Lichtquelle entfernt ist, können
Nahfeldphänomene
zur Wirkung kommen: Der Energieeintrag von der Lichtquelle in die Keramik
kann durch einen dem sog. Förster-Transfer-Prozess ähnlichen
Vorgang intensiviert werden. Desweiteren kann die dem LED Chip zugewandte Oberfläche des
erfindungsgemäßen Leuchtstoffkörpers mit
einer Beschichtung versehen werden, welche entspiegelnd in Bezug
auf die von dem LED Chip emittierte Primärstrahlung wirkt. Dies führt ebenfalls zu
einer Verringerung der Rückstreuung
der Primärstrahlung,
wodurch diese besser in den erfindungsgemäßen Leuchtstoffkörper eingekoppelt
werden kann. Hierfür
eignen sich beispielsweise brechzahlangepasste Beschichtungen, die
eine folgende Dicke d aufweisen müssen: d = [Wellenlänge der
Primärstrahlung
des LED Chips/(4·Brechzahl
der Leuchtstoffkeramik)], s. beispielsweise
Der erfindungsgemäße Leuchtstoffkörper kann, falls erforderlich, mit einer Wasserglaslösung auf dem Untergrund eines LED Chip fixiert werden.Of the Fluorescent body according to the invention can, if necessary, with a waterglass solution on the substrate LED chip to be fixed.
In
einer weiteren bevorzugten Ausführungsform
besitzt der keramische Leuchtstoffkörper auf der, einem LED Chip
entgegengesetzten Seite eine strukturierte (z.B. pyramidale) Oberfläche (siehe
Die
strukturierte Oberfläche
auf dem Leuchtstoffkörper
wird dadurch hergestellt, in dem beim isostatischen Verpressen das
Presswerkzeug eine strukturierte Pressplatte aufweist und dadurch
eine Struktur in die Oberfläche
prägt.
Strukturierte Oberflächen
sind dann gewünscht,
wenn möglichst
dünne Leuchtstoffkörper bzw.
Plättchen
hergestellt werden sollen. Die Pressbedingungen sind dem Fachmann bekannt
(siehe
Je
nach Presswerkzeug werden dünne
Plättchen
oder Stäbe
als Keramiken erhalten. Stäbe
müssen
dann in einem weiteren Schritt in dünne Scheiben zersägt werden
(siehe
In
einer weiteren bevorzugten Ausführungsform
besitzt der erfindungsgemäße keramische Leuchtstoffkörper auf
der, einem LED Chip entgegengesetzten Seite eine raue Oberfläche (siehe
In einer weiteren bevorzugten Ausführungsform besitzt der erfindungsgemäße Leuchtstoffkörper auf der dem Chip abgewandten Oberfläche eine Brechzahl angepasste Schicht, welche die Auskopplung der Primärstrahlung und oder der vom Leuchtstoffkörper emittierten Strahlung erleichtert.In a further preferred embodiment has the phosphor body according to the invention the surface facing away from the chip a refractive index adapted layer, which is the decoupling of the primary radiation and or from the phosphor body emitted radiation facilitates.
In einer weiteren bevorzugten Ausführungsform besitzt der keramische Leuchtstoffkörper auf der, einem LED Chip zugewandten Seite eine polierte Oberfläche gemäß DIN EN ISO 4287 (Rugotest; polierte Oberfläche haben die Rauheitsklasse N3-N1). Dies hat den Vorteil, dass die Oberfläche verringert wird, wodurch weniger Licht zurück gestreut wird.In a further preferred embodiment has the ceramic phosphor body on the, an LED chip facing side a polished surface according to DIN EN ISO 4287 (Rugotest; polished surface have the roughness class N3-N1). This has the advantage that the surface is reduced, whereby less light is scattered back.
Zusätzlich kann diese polierte Oberfläche auch noch mit einer Beschichtung versehen werden, die für die Primärstrahlung transparent ist, aber die Sekundärstrahlung reflektiert. Dann kann die Sekundärstrahlung nur nach oben emittiert werden.In addition, can this polished surface too still be provided with a coating for the primary radiation is transparent, but the secondary radiation reflected. Then the secondary radiation can only be emitted upwards become.
Die Edukte zur Herstellung des keramischen Leuchtstoffkörpers bestehen aus dem Basismaterial (z.B. Salzlösungen des Yttrium, Aluminiums, Gadoliniums) sowie mindestens einem Dotierstoff (z.B. Cer). Als Edukte kommen anorganische und/oder organische Stoffe wie Nitrate, Carbonate, Hydrogencarbonate, Phosphate, Carboxylate, Alkoholate, Acetate, Oxalate, Halogenide, Sulfate, metallorganische Verbindungen, Hydroxide und/oder Oxide der Metalle, Halbmetalle, Übergangsmetalle und/oder Seltenerden in Frage, welche in anorganischen und/oder organischen Flüssigkeiten gelöst und/oder suspendiert sind. Vorzugsweise werden Mischnitratlösungen eingesetzt, welche die entsprechenden Elemente im erforderlichen stöchiometrischen Verhältnis enthalten.The Edukte exist for the production of the ceramic phosphor body from the base material (e.g., saline solutions of yttrium, aluminum, Gadolinium) and at least one dopant (e.g., cerium). When Starting materials are inorganic and / or organic substances such as nitrates, Carbonates, hydrogencarbonates, phosphates, carboxylates, alcoholates, Acetates, oxalates, halides, sulfates, organometallic compounds, Hydroxides and / or oxides of the metals, semimetals, transition metals and / or rare earths, which in inorganic and / or organic liquids solved and / or suspended. Preferably mixed nitrate solutions are used, which the corresponding elements in the required stoichiometric relationship contain.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung eines keramischen Leuchtstoffkörpers mit folgenden Verfahrensschritten:
- a) Herstellen eines Leuchtstoffes durch Mischen von mindestens zwei Edukten und mindestens einem Dotierstoff nach nasschemischen Methoden sowie anschließende thermische Behandlung der entstehenden Leuchtstoffprecursoren
- b) Isostatische Verpressung der Leuchtstoffprecursoren zu einem keramischen Leuchtstoffkörper
- a) Producing a phosphor by mixing at least two educts and at least one dopant by wet-chemical methods and subsequent thermal treatment of the resulting phosphor precursors
- b) Isostatic pressing of the phosphor precursors into a ceramic phosphor body
Die nasschemische Herstellung besitzt generell den Vorteil, dass die resultierenden Materialien eine höhere Einheitlichkeit in Bezug auf die stöchiometrische Zusammensetzung, die Partikelgröße und die Morphologie der Partikel aufweisen, aus denen der erfindungsgemäße keramische Leuchtstoffkörper hergestellt wird.The Wet chemical production generally has the advantage that the resulting materials have a higher uniformity in terms to the stoichiometric Composition, particle size and the Have morphology of the particles from which the inventive ceramic Phosphor body produced becomes.
Für die nasschemische Vorbehandlung einer wässrigen Vorstufe der Leuchtstoffe (Leuchtstoffprecursoren) bestehend z.B. aus einem Gemisch von Yttriumnitrat-, Aluminiumnitrat-, Cernitrat- und Gadoliniumnitratlösung sind folgende bekannte Methoden bevorzugt:
- • Cofällung mit
einer NH4HCO3-Lösung (siehe
z.B.
)Jander, Blasius Lehrbuch der analyt. u. präg. anorg. Chem. 2002 - • Pecchini-Verfahren
mit einer Lösung
aus Zitronensäure
und Ethylenglykol (siehe z.B.
)Annual Review of Materials Research Vol. 36: 2006, 281-331 - • Combustion-Verfahren unter Verwendung von Harnstoff
- • Sprühtrocknung wässriger oder organischer Salzlösungen (Edukte)
- • Sprühpyrolyse (auch Spraypyrolyse genannt) wässriger oder organischer Salzlösungen (Edukte)
- Co-precipitation with a NH 4 HCO 3 solution (see, eg
)Jander, Blasius textbook of the analyt. u. Präg. anorg. Chem. 2002 - • Pecchini method with a solution of citric acid and ethylene glycol (see, eg
)Annual Review of Materials Research Vol. 36: 2006, 281-331 - • Combustion process using urea
- Spray drying of aqueous or organic salt solutions (educts)
- • spray pyrolysis (also called spray pyrolysis) of aqueous or organic salt solutions (educts)
Bei der o.g. Cofällung werden z.B. die o.g. Nitratlösungen der entsprechenden Leuchtstoffedukte mit einer NH4HCO3-Lösung versetzt, wodurch sich der Leuchtstoffprecursor bildet.In the above-mentioned co-precipitation, for example, the abovementioned nitrate solutions of the corresponding phosphorus are mixed with an NH 4 HCO 3 solution, whereby the phosphor precursor is formed.
Beim Pecchini-Verfahren werden z.B. die o.g. Nitratlösungen der entsprechenden Leuchtstoffedukte bei Raumtemperatur mit einem Fällungsreagenz bestehend aus Zitronensäure und Ethylenglykol versetzt und anschließend erhitzt. Durch Erhöhung der Viskosität kommt es zur Leuchtstoffprecursor-Bildung.At the Pecchini methods are described e.g. the o.g. Nitrate solutions of the corresponding Leuchtstoffedukte at room temperature with a precipitating reagent consisting of citric acid and ethylene glycol and then heated. By increasing the viscosity it comes to phosphor precursor formation.
Beim bekannten Combustion-Verfahren werden z.B. die o.g. Nitratlösungen der entsprechenden Leuchtstoffedukte in Wasser gelöst, dann unter Rückfluss gekocht und mit Harnstoff versetzt, wodurch sich der Leuchtstoffprecursor langsam bildet.At the known combustion methods are e.g. the o.g. Nitrate solutions of corresponding Leuchtstoffedukte dissolved in water, then under reflux boiled and mixed with urea, whereby the phosphor precursor slow forms.
Die Sprühpyrolyse gehört zu den Aerosolverfahren, die durch Versprühen von Lösungen, Suspensionen oder Dispersionen in einen durch unterschiedliche Art und Weise erhitzten Reaktionsraum (Reaktor) sowie die Bildung und Abscheidung von Feststoff-Partikeln gekennzeichnet sind. Im Gegensatz zur Sprühtrocknung mit Heißgastemperaturen < 200°C finden bei der Sprühpyrolyse als Hochtemperatur-Prozess außer der Verdampfung des Lösungsmittels zusätzlich die thermische Zersetzung der verwendeten Edukte (z.B. Salze) sowie die Neubildung von Stoffen (z.B. Oxide, Mischoxide) statt.Spray pyrolysis belongs to the aerosol processes which are characterized by spraying solutions, suspensions or dispersions into a reaction chamber (reactor) heated in different ways, as well as the formation and separation of solid particles. In the counter Set for spray drying with hot gas temperatures <200 ° C found in the spray pyrolysis as a high-temperature process in addition to the evaporation of the solvent in addition, the thermal decomposition of the reactants used (eg salts) and the formation of new substances (eg oxides, mixed oxides) instead.
Die
o.g. 5 Verfahrensvarianten sind ausführlich in der
Die nach den o.g. Methoden hergestellten Leuchtstoffprecursoren (z.B. amorphes oder teilkristallines oder kristallines YAG mit Cer dotiert, bestehen aus sub-μm großen Partikeln, weil sie dadurch eine sehr hohe Oberflächenenergie besitzen und über eine sehr große Sinteraktivität verfügen. Der Median der Partikelgrößenverteilung [Q(x = 50%)] des erfindungsgemäßen keramischen Leuchtstoffkörpers liegt in einem Intervall von [Q(x = 50%)] = 50 nm bis [Q(x = 50%)] = 5 μm, vorzugsweise von [Q(x = 50%)] = 80 bis [Q(x = 50%)] = 1 μm. Die Partikelgrößen wurden auf Basis von REM-Aufnahmen ermittelt, indem die Partikeldurchmesser manuell aus den digitalisierten REM-Abbildungen bestimmt worden sind.The after the o.g. Methods of prepared phosphor precursors (e.g. amorphous or partially crystalline or crystalline YAG doped with cerium, consist of sub-μm huge Particles, because they have a very high surface energy own and over a very big one sintering activity feature. The median particle size distribution [Q (x = 50%)] of the ceramic according to the invention Phosphor element is in an interval from [Q (x = 50%)] = 50 nm to [Q (x = 50%)] = 5 μm, preferably from [Q (x = 50%)] = 80 to [Q (x = 50%)] = 1 μm. The particle sizes were determined on the basis of SEM images by the particle diameter manually determined from the digitized SEM images are.
Anschließend werden die Leuchtstoffprecursoren isostatisch verpresst (bei Drücken zwischen 1000 und 10000 bar, vorzugsweise 2000 bar in inerter, reduzierender oder oxidierender Atmosphäre oder unter Vakuum) und hierbei in die entsprechende Plättchenform gebracht. Bevorzugt werden die Leuchtstoffprecursoren vor der isostatischen Verpressung noch mit einem 0.1 bis 1 wt% Sinterhilfsmittel wie Siliciumdioxid oder Magnesiumoxid-Nanopulver vermischt. Anschließend kann noch eine zusätzliche thermische Behandlung erfolgen, indem der Pressling bei 2/3 bis ¾ seiner Schmelztemperatur im Kammerofen eventuell in reduzierenden oder oxidierenden Reaktionsgasatmosphären (O2, CO, H2, H2/N2, etc), an der Luft oder im Vakuum behandelt wird.Subsequently, the phosphor precursors are compressed isostatically (at pressures between 1000 and 10000 bar, preferably 2000 bar in an inert, reducing or oxidizing atmosphere or under vacuum) and thereby brought into the appropriate platelet shape. Preferably, the phosphor precursors are mixed before the isostatic pressing with a 0.1 to 1 wt% sintering aid such as silica or magnesium oxide nanopowder. Subsequently, an additional thermal treatment can be carried out by the compact at 2/3 to ¾ of its melting temperature in the chamber furnace possibly in reducing or oxidizing reaction gas atmospheres (O 2 , CO, H 2 , H 2 / N 2 , etc), in the air or is treated in vacuo.
Insbesondere zur Erzielung einer homogenen Struktur und porenfreien Oberfläche des Leuchtstoffplättchens kann es anstelle der isostatischen Verpressung erforderlich sein, das Pulverkorn mittels der heißisostatischen Verpressung in das Leuchtstoffplättchen zu verarbeiten. Hierbei wird unter Druck/Schutzgasatmosphäre, oxidierender oder reduzierender Reaktionagasatmosphäre oder Vakuumeinwirkung und gleichzeitiger Calzinierung bei bis zu 2/3 bis 5/6 der Schmelztemperatur ein homogener, porenfreier und in einem bestimmten Ausmasse isotroper Werkstoffverbund erzeugt.Especially to achieve a homogeneous structure and non-porous surface of the Fluorescent plate it may be necessary instead of isostatic pressing the powder grain by means of the hot isostatic Compression in the phosphor plate to process. This is under pressure / inert gas atmosphere, oxidizing or reducing reaction gas atmosphere or vacuum action and simultaneous calcination at up to 2/3 to 5/6 of the melting temperature a homogeneous, pore-free and to a certain extent isotropic Material composite generated.
Da die Verarbeitung unterhalb der Schmelztemperatur erfolgt, wird die Verbindung der Partikel untereinander durch Diffusionsprozesse an den Grenzflächen ermöglicht, wobei chemische Bindungen im Formkörper gebildet werden.There the processing takes place below the melting temperature, the Connection of the particles to each other by diffusion processes the interfaces allows wherein chemical bonds are formed in the molding.
Ein weiterer Gegenstand der vorliegenden Erfindung ist eine Beleuchtungseinheit mit mindestens einer Primärlichtquelle, deren Emissionsmaximum im Bereich 240 bis 510 nm liegt, wobei die primäre Strahlung teilweise oder vollständig in längerwellige Strahlung konvertiert wird durch den erfindungsgemäßen keramischen Leuchtstoffkörper. Vorzugsweise ist diese Beleuchtungseinheit weiß emittierendOne Another object of the present invention is a lighting unit with at least one primary light source, whose emission maximum is in the range 240 to 510 nm, the primary radiation partially or completely in longer-wave Radiation is converted by the ceramic according to the invention Phosphor element. Preferably, this lighting unit is emitting white
In einer bevorzugten Ausführungsform der erfindungsgemäßen Beleuchtungseinheit handelt es sich bei der Lichtquelle um ein luminescentes IndiumAluminiumGalliumNitrid, insbesondere der Formel IniGajAlkN, wobei 0 ≤ i, 0 ≤ j, 0 ≤ k, und i + j + k = 1 ist.In a preferred embodiment of the illumination unit of the invention is the light source is a luminescent indium aluminum gallium nitride, in particular of the formula In i Ga j Al k N, where 0 ≤ i, 0 ≤ j, 0 ≤ k, and i + j + k = 1 is.
In einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Beleuchtungseinheit handelt es sich bei der Lichtquelle um eine luminescente auf ZnO, TCO (Transparent conducting oxide), ZnSe oder SiC basierende Verbindung oder auch um eine organische lichtemittierende Schicht.In a further preferred embodiment the lighting unit according to the invention is the light source is a luminescent on ZnO, TCO (Transparent conducting oxide), ZnSe or SiC based compound or also around an organic light-emitting layer.
Ein weiterer Gegenstand der vorliegenden Erfindung ist die Verwendung des erfindungsgemäßen keramischen Leuchtstoffkörpers zur Konversion der blauen oder im nahen UV-liegenden Emission in sichtbare weiße Strahlung.One Another object of the present invention is the use of the ceramic according to the invention Phosphor element to convert the blue or near-UV emission into visible white Radiation.
In einer bevorzugten Ausführungsform kann der keramische Leuchtstoffkörper als Konversionsleuchtstoff für sichtbare Primärstrahlung zur Erzeugung von Weißlicht eingesetzt werden. In diesem Fall ist es für eine hohe Lichtleistung besonders vorteilhaft, wenn der keramische Leuchtstoffkörper einen bestimmten Anteil der sichtbaren Primärstrahlung absorbiert (im Falle von nicht sichtbarer Primärstrahlung soll diese gesamt absorbiert werden) und der restliche Anteil der Primärstrahlung transmittiert wird in Richtung der Oberfläche, welche der Primärlichtquelle gegenüber liegt. Des weiteren ist es für eine hohe Lichtleistung vorteilhaft, wenn der keramische Leuchtstoffkörper für die von ihm emittierte Strahlung möglichst transparent ist bzgl. der Auskopplung über die dem die Primärstrahlung emittierenden Material gegenüberliegende Oberfläche.In a preferred embodiment can the ceramic phosphor body as conversion phosphor for visible primary radiation for generating white light be used. In this case it is special for a high light output advantageous if the ceramic phosphor body a certain proportion absorbs the visible primary radiation (in the case of non-visible primary radiation, this total absorbed) and the remaining portion of the primary radiation is transmitted in the direction of the surface, which is the primary light source across from lies. Furthermore, it is for a high light output advantageous if the ceramic phosphor body for the of radiation emitted to him as possible is transparent with respect to the decoupling over which the primary radiation opposite material Surface.
Bevorzugt ist es auch, wenn der keramische Leuchtstoffkörper eine Keramikdichte zwischen 80 und nahezu 100% aufweist. Ab einer Keramikdichte von über 90% zeichnet sich der keramische Leuchtstoffkörper durch eine ausreichend hohe Transluzenz für die Sekundärstrahlung aus. Dies bedeutet, dass diese Strahlung durch den keramischen Körper hindurchtreten kann. Dazu weist der keramische Leuchtstoffkörper vorzugsweise für die Sekundärstrahlung einer bestimmten Wellenlänge eine Transmission von über 60% auf.It is also preferred if the ceramic phosphor body has a ceramic density between 80 and almost 100%. From a ceramic density of over 90%, the ceramic phosphor body is characterized by a sufficiently high translucency for the secondary radiation. This means that this radiation can pass through the ceramic body. For this purpose, the ceramic phosphor body preferably for the secondary radiation of a certain wavelength has a transmission of more than 60%.
In einer weiteren bevorzugten Ausführungsform kann der keramische Leuchtstoffkörper als Konversionsleuchtstoff für UV-Primärstrahlung zur Erzeugung von Weißlicht eingesetzt werden. In diesem Fall ist es für eine hohe Lichtleistung vorteilhaft, wenn der keramische Leuchtstoffkörper die gesamte Primärstrahlung absorbiert und wenn der keramische Leuchtstoffkörper für die von ihm emittierte Strahlung möglichst transparent ist.In a further preferred embodiment can the ceramic phosphor body as conversion phosphor for UV primary radiation for generating white light be used. In this case, it is advantageous for a high light output, when the ceramic phosphor body the entire primary radiation absorbed and if the ceramic phosphor body for the radiation emitted by it as possible is transparent.
Die folgenden Beispiele sollen die vorliegende Erfindung verdeutlichen. Sie sind jedoch keinesfalls als limitierend zu betrachten. Alle Verbindungen oder Komponenten, die in den Zubereitungen verwendet werden können, sind entweder bekannt und käuflich erhältlich oder können nach bekannten Methoden synthetisiert werden. Die in den Beispielen angegebenen Temperaturen gelten immer in °C. Es versteht sich weiterhin von selbst, dass sich sowohl in der Beschreibung als auch in den Beispielen die zugegebenen Mengen der Komponenten in den Zusammensetzungen immer zu insgesamt 100% addieren. Gegebene Prozentangaben sind immer im gegebenen Zusammenhang zu sehen. Sie beziehen sich üblicherweise aber immer auf die Masse der angegebenen Teil- oder Gesamtmenge.The The following examples illustrate the present invention. However, they are by no means to be considered limiting. All Compounds or components used in the preparations can be are either known and commercially available available or can be synthesized by known methods. Those given in the examples Temperatures are always in ° C. It goes without saying that both in the description as well as in the examples the added amounts of the components always add up to a total of 100% in the compositions. datum Percentages are always to be seen in the given context. she usually refer but always on the mass of the stated partial or total quantity.
BeispieleExamples
Beispiel 1: Herstellung von feinpulvrigem (Y0.98Ce0.02)3Al5O12 über Cofällung mit anschließender Verpressung und Sinterung zum LeuchtstoffplättchenExample 1: Production of finely powdery (Y 0.98 Ce 0.02 ) 3 Al 5 O 12 via co-precipitation with subsequent pressing and sintering to the phosphor plate
Es werden 29.4 ml 0.5 M Y(NO3)3·6H2O-Lösung, 0.6 ml 0.5 M Ce(NO3)3·6H2O-Lösung und 50 ml 0.5 M Al(NO3)3·9H2O in einen Tropftrichter gefüllt. Die vereinigten Lösungen werden unter Rühren langsam zu 80 ml einer 2 M Ammoniumhydrogencarbonat-Lösung, die vorher mit etwas NH3-Lösung auf pH 8-9 gebracht wurde, getropft. Während des Zutropfens der sauren Nitrat-Lösung muss der pH-Wert durch Ammoniakzugabe auf 8-9 gehalten werden. Nach ca. 30-40 Minuten sollte die ganze Lösung zugetropft sein, wobei sich ein flockiger, weißer Niederschlag gebildet hat.There are 29.4 ml of 0.5 MY (NO 3 ) 3 · 6H 2 O solution, 0.6 ml of 0.5 M Ce (NO 3 ) 3 · 6H 2 O solution and 50 ml of 0.5 M Al (NO 3 ) 3 · 9H 2 O in filled a dropping funnel. The combined solutions are slowly added dropwise with stirring to 80 ml of a 2 M ammonium bicarbonate solution, which was previously brought to pH 8-9 with some NH 3 solution. During the dropwise addition of the acid nitrate solution, the pH must be kept at 8-9 by addition of ammonia. After about 30-40 minutes, the whole solution should be added dropwise, whereby a flaky, white precipitate has formed.
Man lässt den Niederschlag etwa 1 h altern und saugt ihn dann durch einen Filter ab. Anschließend wird das Produkt mehrfach mit deionisiertem Wasser gewaschen.you lets the Aging precipitates for about 1 h and then sucks it through a filter from. Subsequently The product is washed several times with deionized water.
Nach dem Entfernen des Filters wird der Niederschlag in die Kristallisierschale überführt und im Trockenschrank bei 150°C getrocknet. Schließlich wird der getrocknete Niederschlag in den kleineren Korundtiegel gefüllt, dieser in den größeren Korundtiegel gestellt, der einige Gramm gekörnte Aktivkohle enthält, und anschließend mit dem Tiegeldeckel verschlossen. Der verschlossene Tiegel wird in den Kammerofen gestellt und dann 4 h bei 1000°C kalziniert.To removal of the filter, the precipitate is transferred to the crystallizer and in a drying oven at 150 ° C dried. Finally will the dried precipitate filled in the smaller corundum crucible, this one in the larger corundum pot posed, which granulated a few grams Contains activated carbon, and subsequently closed with the crucible lid. The sealed pot is placed in the chamber furnace and then calcined at 1000 ° C for 4 h.
Das feine Leuchtstoffpulver, welches aus der exakten chemischen Stöchiometrie bzgl. der erforderlichen Kationen mit möglichst geringen Verunreinigungen (insbes. Schwermetalle jeweils kleiner als 50 ppm) aus vorzugsweise sub-μm großem Primärkorn besteht, wird dann in einer Presse bei 1000-10.000, vorzugsweise 2000 bar vorverdichtet in die entsprechende Plättchenform gebracht bei einer Temperatur von bis zu 5/6 seiner Schmelztemperatur. Anschließend erfolgt eine zusätzliche Behandlung des Preßlings bei 2/3 bis 5/6 seiner Schmelztemperatur im Kammerofen in Formiergasatmosphäre.The fine phosphor powders, which from the exact chemical stoichiometry regarding the required cations with the lowest possible impurities (especially heavy metals each less than 50 ppm) from preferably sub-μm sized primary grain, is then in a press at 1000-10,000, preferably 2000 bar pre-compressed into the appropriate platelet form at a temperature of up to 5/6 of its melting temperature. Then done an additional Treatment of the compact at 2/3 to 5/6 of its melting temperature in the chamber furnace in Formiergasatmosphäre.
Beispiel 2: Herstellung einer Vorstufe (Precursorpartikel) des Leuchtstoffes (Y0.98Ce0.02)3Al5O12 über CofällungExample 2 Preparation of a precursor (precursor particle ) of the phosphor (Y 0.98 Ce 0.02 ) 3 Al 5 O 12 via co-precipitation
Es werden 2,94 l 0.5 M Y(NO3)3·6H2O-Lösung, 60 ml 0.5 M Ce(NO3)3·6H2O-Lösung und 5 l 0.5 M Al(NO3)3·9H2O in einen Dosiergefäß gefüllt. Die vereinigten Lösungen werden unter Rühren langsam zu 8 l einer 2 M Ammoniumhydrogencarbonat-Lösung, die vorher mit NH3-Lösung auf pH 8-9 gebracht wurde, dosiert.There are 2.94 l of 0.5 MY (NO 3 ) 3 .6H 2 O solution, 60 ml of 0.5 M Ce (NO 3 ) 3 .6H 2 O solution and 5 l of 0.5 M Al (NO 3 ) 3 .9H 2 O filled in a dosing. The combined solutions are slowly metered with stirring into 8 l of a 2 M ammonium bicarbonate solution which had previously been brought to pH 8-9 with NH 3 solution.
Während des Zudosierens der sauren Nitrat-Lösung muss der pH-Wert durch Ammoniakzugabe auf 8-9 gehalten werden. Nach ca. 30-40 Minuten sollte die ganze Lösung zudosiert sein, wobei sich ein flockiger, weißer Niederschlag bildet. Man lässt den Niederschlag etwa 1 h altern.During the Adding the acid nitrate solution the pH must be kept at 8-9 by ammonia addition. To about 30-40 minutes, the whole solution should be added, with a fuzzier, whiter Precipitation forms. You leave the precipitate is about 1 h old.
Beispiel 3: Herstellung einer Vorstufe des Leuchtstoffes Y2,541Gd0,450Ce0,009Al5O12 über CofällungExample 3: Preparation of a precursor of the phosphor Y 2.541 Gd 0.450 Ce 0.009 Al 5 O 12 via co-precipitation
0,45 Mol Gd(NO3)3·6H2O, 2,54 Mol Y(NO3)3·6H2O (M = 383,012 g/mol), 5 Mol Al(NO3)3·9H2O (M = 375,113) und 0,009 Mol Ce(NO3)3·6H2O werden in 8,2 l dest. Wasser gelöst. Diese Lösung wird tropfenweise in 16,4 l einer wässrigen Lösung aus 26,24 Mol NH4HCO3 (mit M = 79,055 g/mol, m = 2740 g) dosiert unter ständigem Rühren bei Raumtemperatur. Nach Beendung der Fällung wird unter Rühren der Niederschlag eine Stunde gealtert.0.45 moles of Gd (NO 3 ) 3 .6H 2 O, 2.54 moles of Y (NO 3 ) 3 .6H 2 O (M = 383.012 g / mol), 5 moles of Al (NO 3 ) 3 .9H 2 O (M = 375.113) and 0.009 mol of Ce (NO 3 ) 3 .6H 2 O are distilled into 8.2 l. Water dissolved. This solution is added dropwise in 16.4 l of an aqueous solution of 26.24 mol of NH 4 HCO 3 (with M = 79.055 g / mol, m = 2740 g) while stirring at room temperature. After completion of the precipitation, the precipitate is aged for one hour with stirring.
Der Niederschlag wird durch Rühren in der Schwebe gehalten.Of the Precipitation is by stirring held in suspense.
Nach Filtration wird der Filterkuchen mit Wasser gewaschen und dann über einige Stunden bei 150°C getrocknet.To Filtration, the filter cake is washed with water and then over some Hours at 150 ° C dried.
Beispiel 4: Herstellung einer Vorstufe (Precursorpartikel) des Leuchtstoffes Y2,88Ce0,12Al5O12 über den Pecchini-ProzessExample 4: Preparation of a precursor (precursor particle) of the phosphor Y 2.88 Ce 0.12 Al 5 O 12 via the pecchini process
2,88 Mol Mol Y(NO3)3·6H2O, 5 Mol Al(NO3)3·9H2O (M = 375,113) und 0,12 Mol Ce(NO3)3·6H2O in 3280 ml dest. Wasser lösen. Diese Lösung wird bei Raumtemperatur unter Rühren in eine Fällungslösung, bestehend aus 246 g Zitronensäure in 820 ml Ethylenglykol getropft und gerührt, bis die Dispersion transparent wird. Diese Lösung wird dann vorsichtig eingedampft. Der Rückstand wird in Wasser aufgenommen und unter Waschen filtriert.2.88 moles of Y (NO 3 ) 3 .6H 2 O, 5 moles of Al (NO 3 ) 3 .9H 2 O (M = 375.113) and 0.12 moles of Ce (NO 3 ) 3 .6H 2 O in 3280 ml of dist. Dissolve water. This solution is added dropwise at room temperature with stirring in a precipitation solution consisting of 246 g of citric acid in 820 ml of ethylene glycol and stirred until the dispersion is transparent. This solution is then carefully evaporated. The residue is taken up in water and filtered while washing.
Beispiel 5: Herstellung einer Vorstufe (Precursorpartikel) des Leuchtstoffes Y2,541Gd0,450Ce0,009Al5O12 über den Pecchini-ProzessExample 5: Preparation of a precursor (precursor particle ) of the phosphor Y 2.541 Gd 0.450 Ce 0.009 Al 5 O 12 via the pecchini process
0,45 Mol Gd(NO3)3·6H2O, 2,541 Mol Y(NO3)3·6H2O (M = 383,012 g/mol), 5 Mol Al(NO3)3·9H2O (M = 375,113) und 0,009 Mol Ce(NO3)3·6H2O werden in 3280 ml dest. Wasser gelöst. Diese Lösung wird bei Raumtemperatur unter Rühren in eine Fällungslösung, bestehend aus 246 g Zitronensäure in 820 ml Ethylenglycol getropft und gerührt, bis die Dispersion transparent wird. Danach wird die Dispersion auf 200°C erhitzt. Hierbei kommt es zur Erhöhung der Viskosität und schließlich zur Fällung bzw. Trübung.0.45 moles of Gd (NO 3 ) 3 .6H 2 O, 2.541 moles of Y (NO 3 ) 3 .6H 2 O (M = 383.012 g / mol), 5 moles of Al (NO 3 ) 3 .9H 2 O (M = 375.113) and 0.009 moles of Ce (NO 3 ) 3 .6H 2 O are distilled in 3280 ml. Water dissolved. This solution is added dropwise at room temperature with stirring in a precipitation solution consisting of 246 g of citric acid in 820 ml of ethylene glycol and stirred until the dispersion is transparent. Thereafter, the dispersion is heated to 200 ° C. This leads to an increase in viscosity and finally to precipitation or turbidity.
Beispiel 6: Herstellung einer Vorstufe (Precursorpartikel) des Leuchtstoffes Y2,94Al5O12:Ce0,06 mittels Combustion-Methode unter Einsatz von HarnstoffExample 6: Preparation of a precursor (precursor particle) of the phosphor Y 2.94 Al 5 O 12 : Ce 0.06 by means of the combustion method using urea
2,94 Mol Y(NO3)3·6H2O, 5 Mol Al(NO3)3·9H2O (M = 375,113) und 0,06 Mol Ce(NO3)3·6H2O werden in 3280 ml dest. Wasser gelöst und am Rückfluß gekocht. In die siedende Lösung werden 8,82 mol Harnstoff gegeben. Bei weiterem Sieden und schließlich teilweisem Eindampfen entsteht ein feiner opak weißer Schaum. Dieser wird bei 100°C getrocknet, fein gemahlen, wieder in Wasser dispergiert und in der Schwebe gehalten.2.94 moles of Y (NO 3 ) 3 .6H 2 O, 5 moles of Al (NO 3 ) 3 .9H 2 O (M = 375.113) and 0.06 moles of Ce (NO 3 ) 3 .6H 2 O are prepared in 3280 ml of dist. Dissolved water and boiled at reflux. 8.82 moles of urea are added to the boiling solution. Further boiling and finally partial evaporation gives rise to a fine, opaque white foam. This is dried at 100 ° C, finely ground, redispersed in water and kept in suspension.
Beispiel 7: Herstellung einer Vorstufe (Precursorpartikel) des Leuchtstoffes Y2,541Gd0,450Ce0,009Al5O12 mittels Combustion-Methode unter Einsatz von HarnstoffExample 7: Preparation of a precursor (precursor particles ) of the phosphor Y 2.541 Gd 0.450 Ce 0.009 Al 5 O 12 by means of combustion method using urea
0,45 Mol Gd(NO3)3·6H2O, 2,54 Mol Y(NO3)3·6H2O (M = 383,012 g/mol), 5 Mol Al(NO3)3·9H2O (M = 375,113) und 0,009 Mol Ce(NO3)3·6H2O werden in 3280 ml dest. Wasser gelöst und am Rückfluß gekocht. In die siedende Lösung werden 8,82 mol Harnstoff gegeben. Bei weiterem Sieden und schließlich teilweisem Eindampfen entsteht ein feiner opak weißer Schaum. Dieser wird getrocknet bei 100°C und fein gemahlen und danach wieder in Wasser dispergiert und in der Schwebe gehalten.0.45 moles of Gd (NO 3 ) 3 .6H 2 O, 2.54 moles of Y (NO 3 ) 3 .6H 2 O (M = 383.012 g / mol), 5 moles of Al (NO 3 ) 3 .9H 2 O (M = 375.113) and 0.009 moles of Ce (NO 3 ) 3 .6H 2 O are distilled into 3280 ml. Dissolved water and boiled at reflux. 8.82 moles of urea are added to the boiling solution. Further boiling and finally partial evaporation gives rise to a fine, opaque white foam. This is dried at 100 ° C and finely ground and then dispersed again in water and kept in suspension.
Beispiel 8: Verpressen der Leuchtstoffpartikel zu einer LeuchtstokkkeramikExample 8: Compression of the phosphor particles to a Leuchtstokkkeramik
Das feine getrocknete Leuchtstoffpulver aus den Beispielen 2 bis 7 welches aus der exakten chemischen Stöchiometrie bzgl. der erforderlichen Kationen mit möglichst geringen Verunreinigungen (insbes. Schwermetalle jeweils kleiner als 50 ppm) aus vorzugsweise sub-μm großem Primärkorn besteht, wird dann in einer Presse bei 1000-10.000, vorzugsweise 2000 bar vorverdichtet in die entsprechende Plättchenform gebracht bei einer Temperatur von bis zu 5/6 seiner Schmelztemperatur.The fine dried phosphor powder from Examples 2 to 7 which from the exact chemical stoichiometry regarding the required cations with the lowest possible impurities (especially heavy metals each less than 50 ppm) from preferably sub-μm large primary grain is then precompressed in a press at 1000-10,000, preferably 2000 bar in the appropriate platelet shape brought at a temperature of up to 5/6 of its melting temperature.
Anschließend erfolgt eine zusätzliche Behandlung des Preßlings bei 2/3 bis 5/6 seiner Schmelztemperatur im Kammerofen in Formiergasatmosphäre.Then done an additional Treatment of the compact at 2/3 to 5/6 of its melting temperature in the chamber furnace in Formiergasatmosphäre.
Beispiel 9: Verpressung zu einer Keramik unter Zuhilfenahme von Sinteradditiven und nachfolgender VerspiegelungExample 9: Compression to a ceramic with the aid of sintering additives and subsequent silvering
Die in den vorher genannten Beispielen 1 bis 7 beschriebenen Precursorpartikel werden unter Verwendung von 0.1 bis 1% Sinterhilfsmittel (MgO, SiO2-Nanopartikel) isostatisch heiß verpresst, zunächst in Luft, dann in einer reduzierenden Atmosphäre aus Formiergas. Es resultieren Keramiken in Form von Plättchen oder eines Stabes, die anschließend an den Seitenflächen mit Silber oder Aluminium verspiegelt und dann als Leuchtstoff eingesetzt werden.The precursor particles described in the abovementioned Examples 1 to 7 are hot pressed isostatically using 0.1 to 1% sintering aid (MgO, SiO 2 nanoparticles), first in air, then in a reducing atmosphere of forming gas. This results in ceramics in the form of platelets or a rod, which are then mirrored on the side surfaces with silver or aluminum and then used as a phosphor.
Die
Verspiegelung wird wie folgt durchgeführt:
Der in Form von Stäben oder
Plättchen
nach dem isostatischen Verpressen resultierende keramische Leuchtstoffkörper wird
an den Seitenflächen
mit einer Lösung
aus 5% AgNO3 und 10% Glucose benetzt. Bei
einer erhöhten
Temperatur wird das benetzte Material einer Ammoniak Atmosphäre ausgesetzt.
Hierbei bildet sich ein silberner Belag auf den Seitenflächen aus.The mirroring is carried out as follows:
The resulting in the form of rods or platelets after isostatic pressing ceramic phosphor body is wetted at the side surfaces with a solution of 5% AgNO 3 and 10% glucose. At an elevated temperature, the wetted material is exposed to an ammonia atmosphere. This forms a silver coating on the side surfaces.
Figurencharacters
Im folgenden soll die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert werden. Es zeigen:in the The following is the invention based on several embodiments be explained in more detail. It demonstrate:
Claims (20)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006037730A DE102006037730A1 (en) | 2006-08-11 | 2006-08-11 | LED conversion phosphors in the form of ceramic bodies |
| CA002660385A CA2660385A1 (en) | 2006-08-11 | 2007-07-05 | Led conversion phosphors in the form of ceramic elements |
| CNA2007800297406A CN101501160A (en) | 2006-08-11 | 2007-07-05 | LED conversion phosphors in the form of ceramic bodies |
| EP07765071A EP2049617A1 (en) | 2006-08-11 | 2007-07-05 | Led conversion phosphors in the form of ceramic bodies |
| JP2009523162A JP2010500704A (en) | 2006-08-11 | 2007-07-05 | LED conversion phosphor in the form of a ceramic element |
| AU2007283176A AU2007283176A1 (en) | 2006-08-11 | 2007-07-05 | LED conversion phosphors in the form of ceramic bodies |
| KR1020097004468A KR20090054978A (en) | 2006-08-11 | 2007-07-05 | LED conversion phosphor in the form of ceramic body |
| US12/376,860 US20100187976A1 (en) | 2006-08-11 | 2007-07-05 | Led conversion phosphors in the form of ceramic dodies |
| PCT/EP2007/005949 WO2008017353A1 (en) | 2006-08-11 | 2007-07-05 | Led conversion phosphors in the form of ceramic bodies |
| TW096129699A TW200815564A (en) | 2006-08-11 | 2007-08-10 | LED conversion phosphors in the form of ceramic elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006037730A DE102006037730A1 (en) | 2006-08-11 | 2006-08-11 | LED conversion phosphors in the form of ceramic bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102006037730A1 true DE102006037730A1 (en) | 2008-02-14 |
Family
ID=38514966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102006037730A Withdrawn DE102006037730A1 (en) | 2006-08-11 | 2006-08-11 | LED conversion phosphors in the form of ceramic bodies |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20100187976A1 (en) |
| EP (1) | EP2049617A1 (en) |
| JP (1) | JP2010500704A (en) |
| KR (1) | KR20090054978A (en) |
| CN (1) | CN101501160A (en) |
| AU (1) | AU2007283176A1 (en) |
| CA (1) | CA2660385A1 (en) |
| DE (1) | DE102006037730A1 (en) |
| TW (1) | TW200815564A (en) |
| WO (1) | WO2008017353A1 (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007010719A1 (en) | 2007-03-06 | 2008-09-11 | Merck Patent Gmbh | Phosphors consisting of doped garnets for pcLEDs |
| DE102007016228A1 (en) | 2007-04-04 | 2008-10-09 | Litec Lll Gmbh | Process for the production of phosphors based on orthosilicates for pcLEDs |
| DE102008020882A1 (en) * | 2008-04-25 | 2009-10-29 | Ledon Lighting Jennersdorf Gmbh | Light emitting device, has inhomogeneous light source and wavelength converting element positioned in relation to each other such that pre-defined optical characteristics of light is achieved by device |
| WO2011091839A1 (en) | 2010-01-29 | 2011-08-04 | Merck Patent Gmbh | Luminescent substances |
| DE102010021341A1 (en) | 2010-05-22 | 2011-11-24 | Merck Patent Gmbh | phosphors |
| DE102010031914A1 (en) | 2010-07-22 | 2012-01-26 | Merck Patent Gmbh | Carbodiimide phosphors |
| WO2012010244A1 (en) | 2010-07-21 | 2012-01-26 | Merck Patent Gmbh | Aluminate luminescent substances |
| DE102010045368A1 (en) | 2010-09-14 | 2012-03-15 | Merck Patent Gmbh | Silicophosphate phosphors |
| DE102010037813A1 (en) * | 2010-09-28 | 2012-03-29 | Power Data Communications Co., Ltd. | Sealing compound manufacturing method for LED, involves heating and stamping two sealing compound layers and phosphor powder to form compact component that is cut from sealing compound layers and phosphor powder to form covering of LED |
| DE102010047474A1 (en) | 2010-10-06 | 2012-04-12 | Merck Patent Gmbh | Mn-activated phosphors |
| WO2012062758A1 (en) * | 2010-11-09 | 2012-05-18 | Osram Opto Semiconductors Gmbh | Luminescence conversion element, method for the manufacture thereof and opto-electronic component having a luminesence conversion element |
| DE102011010118A1 (en) * | 2011-02-02 | 2012-08-02 | Osram Opto Semiconductors Gmbh | Ceramic conversion element, semiconductor chip with a ceramic conversion element and method for producing a ceramic conversion element |
| WO2012152652A1 (en) * | 2011-05-06 | 2012-11-15 | Osram Opto Semiconductors Gmbh | Conversion element for light-emitting diodes and production method |
| WO2013013931A1 (en) * | 2011-07-25 | 2013-01-31 | Osram Ag | Lighting device |
| DE102012101892A1 (en) * | 2012-03-06 | 2013-09-12 | Osram Opto Semiconductors Gmbh | Wavelength conversion element, semiconductor light emitting device and display device therewith and method for producing a wavelength conversion element |
| WO2014067609A1 (en) | 2012-11-02 | 2014-05-08 | Merck Patent Gmbh | Eu-activated luminophores |
| DE102012220656A1 (en) * | 2012-11-13 | 2014-05-15 | Siemens Aktiengesellschaft | Manufacturing phosphor ceramic useful as wavelength converter in light-emitting device, comprises coating doping element on surface of matrix material, and distributing doping element within matrix material using thermal process step |
| WO2014187530A1 (en) * | 2013-05-23 | 2014-11-27 | Merck Patent Gmbh | Phosphors |
| WO2015082032A1 (en) | 2013-12-04 | 2015-06-11 | Merck Patent Gmbh | Eu2+ -activated phosphors |
| DE102015102842A1 (en) * | 2015-02-27 | 2016-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fluorescent composite ceramics and process for their preparation |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5631745B2 (en) * | 2008-02-21 | 2014-11-26 | 日東電工株式会社 | Light emitting device having translucent ceramic plate |
| WO2009107056A2 (en) * | 2008-02-28 | 2009-09-03 | Philips Intellectual Property & Standards Gmbh | Light emitting diode device |
| TWI390013B (en) * | 2008-06-20 | 2013-03-21 | Warm white light emitting diodes and their orange yellow phosphor | |
| DE102008051029A1 (en) | 2008-10-13 | 2010-04-15 | Merck Patent Gmbh | Doped garnet phosphors with redshift for pcLEDs |
| DE102008058621A1 (en) * | 2008-11-22 | 2010-05-27 | Merck Patent Gmbh | Co-doped 1-1-2-nitrides |
| DE102009010705A1 (en) | 2009-02-27 | 2010-09-02 | Merck Patent Gmbh | Co-doped 2-5-8 nitrides |
| CN102333842B (en) * | 2009-02-27 | 2014-10-22 | 信越化学工业株式会社 | Long-afterglow fluorescent ceramic and process for producing same |
| CN102449111B (en) * | 2009-06-01 | 2014-12-24 | 日东电工株式会社 | Luminescent ceramic and light-emitting device using the same |
| DE102009032711A1 (en) | 2009-07-11 | 2011-01-20 | Merck Patent Gmbh | Co-doped silicooxynitrides |
| CN101697367B (en) | 2009-09-30 | 2014-04-02 | 烁光特晶科技有限公司 | Method for preparing LED by using transparent ceramics |
| DE102009050542A1 (en) | 2009-10-23 | 2011-04-28 | Merck Patent Gmbh | Sm-activated aluminate and borate phosphors |
| TW201140890A (en) | 2009-12-17 | 2011-11-16 | Koninkl Philips Electronics Nv | Lighting device with light source and wavelength converting element |
| WO2011073871A2 (en) | 2009-12-17 | 2011-06-23 | Koninklijke Philips Electronics N.V. | Light emitting diode device with luminescent material |
| US8334646B2 (en) | 2010-09-27 | 2012-12-18 | Osram Sylvania Inc. | LED wavelength-coverting plate with microlenses in multiple layers |
| US8242684B2 (en) * | 2010-09-27 | 2012-08-14 | Osram Sylvania Inc. | LED wavelength-converting plate with microlenses |
| CN103097488B (en) * | 2010-11-30 | 2014-09-03 | 松下电器产业株式会社 | Phosphor and light emitting device |
| EP2657990B1 (en) * | 2010-12-20 | 2016-03-23 | Ocean's King Lighting Science & Technology Co., Ltd. | Light emitting device and manufacturing method thereof |
| TWI434913B (en) * | 2011-07-12 | 2014-04-21 | Bell Ceramics Co Ltd | Fluorescent layer and its manufacturing method and use |
| CN108530064A (en) * | 2012-08-20 | 2018-09-14 | 陶瓷技术有限责任公司 | Composite material based on zirconium oxide |
| TWI448538B (en) | 2012-10-23 | 2014-08-11 | Ind Tech Res Inst | Phosphor and uv light emitting device utilizing the same |
| CN105209570B (en) | 2013-05-13 | 2018-03-09 | 飞利浦照明控股有限公司 | UV radiation device |
| US9837584B2 (en) * | 2013-11-13 | 2017-12-05 | Lg Innotek Co., Ltd. | Bluish green phosphor and light emitting device package including the same |
| WO2015184614A1 (en) * | 2014-06-05 | 2015-12-10 | 上海富迪照明电器有限公司 | High-power high-temperature white light led package and manufacturing method thereof |
| KR101660598B1 (en) * | 2014-12-24 | 2016-09-28 | 주식회사 효성 | Transparent ceramic-plate, method of manufacturing the same, and white light source using the same |
| CN105742420A (en) * | 2016-04-13 | 2016-07-06 | 厦门大学 | Method for reducing color temperature of prepared cold white LED by light emitting sheet |
| CN106433629A (en) * | 2016-09-18 | 2017-02-22 | 南昌大学 | Method for preparing small-Stokes displacement strontium aluminate europium fluorescent powder |
| CN109791970B (en) * | 2016-09-26 | 2022-04-19 | 亮锐控股有限公司 | Wavelength converting materials for light emitting devices |
| JP6642557B2 (en) * | 2017-02-28 | 2020-02-05 | 日亜化学工業株式会社 | Manufacturing method of wavelength conversion member |
| CN108102648B (en) * | 2017-12-25 | 2020-03-10 | 广东工业大学 | Color-adjustable long-afterglow material and preparation method thereof |
| CN112851345B (en) * | 2019-11-12 | 2023-09-15 | 深圳市绎立锐光科技开发有限公司 | Fluorescent ceramic and light source device |
| CN114045047A (en) * | 2021-11-03 | 2022-02-15 | 江西善纳新材料科技有限公司 | Easy-to-color-adjustment high near-infrared reflectivity pigment and preparation method and application thereof |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920010085B1 (en) * | 1988-07-30 | 1992-11-14 | 소니 가부시기가이샤 | Manufacturing method of yttrium, aluminum and garnet fine particles |
| JPH11329726A (en) * | 1998-05-21 | 1999-11-30 | Sharp Corp | Organic EL device |
| JP2001097768A (en) * | 1999-09-29 | 2001-04-10 | Daiichi Kigensokagaku Kogyo Co Ltd | YAG-based ceramic raw material and method for producing the same |
| US6538371B1 (en) * | 2000-03-27 | 2003-03-25 | The General Electric Company | White light illumination system with improved color output |
| US6409938B1 (en) * | 2000-03-27 | 2002-06-25 | The General Electric Company | Aluminum fluoride flux synthesis method for producing cerium doped YAG |
| JP2002368276A (en) * | 2001-06-13 | 2002-12-20 | Toyoda Gosei Co Ltd | Light emitting element |
| US6903505B2 (en) * | 2001-12-17 | 2005-06-07 | General Electric Company | Light-emitting device with organic electroluminescent material and photoluminescent materials |
| JP2003234509A (en) * | 2002-02-08 | 2003-08-22 | Citizen Electronics Co Ltd | Light emitting diode |
| US7361413B2 (en) * | 2002-07-29 | 2008-04-22 | Lumimove, Inc. | Electroluminescent device and methods for its production and use |
| US7554258B2 (en) * | 2002-10-22 | 2009-06-30 | Osram Opto Semiconductors Gmbh | Light source having an LED and a luminescence conversion body and method for producing the luminescence conversion body |
| US7063900B2 (en) * | 2002-12-23 | 2006-06-20 | General Electric Company | White light-emitting organic electroluminescent devices |
| EP1588993B1 (en) * | 2003-01-27 | 2010-11-03 | Konoshima Chemical Co., Ltd. | Rare earth garnet sintered compact |
| DE10361661A1 (en) * | 2003-07-14 | 2005-03-17 | Osram Opto Semiconductors Gmbh | Light-emitting component has luminescence conversion element, filter element with nano-particles that selectively reduce radiation intensity of unwanted radiation spectral sub-region(s) by absorption |
| JP4452464B2 (en) * | 2003-08-08 | 2010-04-21 | スタンレー電気株式会社 | Light emitting diode |
| JP4124056B2 (en) * | 2003-08-14 | 2008-07-23 | 昭栄化学工業株式会社 | Method for producing phosphor powder |
| JP2006164854A (en) * | 2004-12-09 | 2006-06-22 | Toshiba Corp | Fluorescent screen and image display device |
-
2006
- 2006-08-11 DE DE102006037730A patent/DE102006037730A1/en not_active Withdrawn
-
2007
- 2007-07-05 CA CA002660385A patent/CA2660385A1/en not_active Abandoned
- 2007-07-05 US US12/376,860 patent/US20100187976A1/en not_active Abandoned
- 2007-07-05 CN CNA2007800297406A patent/CN101501160A/en active Pending
- 2007-07-05 KR KR1020097004468A patent/KR20090054978A/en not_active Withdrawn
- 2007-07-05 JP JP2009523162A patent/JP2010500704A/en active Pending
- 2007-07-05 AU AU2007283176A patent/AU2007283176A1/en not_active Abandoned
- 2007-07-05 EP EP07765071A patent/EP2049617A1/en not_active Withdrawn
- 2007-07-05 WO PCT/EP2007/005949 patent/WO2008017353A1/en not_active Ceased
- 2007-08-10 TW TW096129699A patent/TW200815564A/en unknown
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007010719A1 (en) | 2007-03-06 | 2008-09-11 | Merck Patent Gmbh | Phosphors consisting of doped garnets for pcLEDs |
| DE102007016228A1 (en) | 2007-04-04 | 2008-10-09 | Litec Lll Gmbh | Process for the production of phosphors based on orthosilicates for pcLEDs |
| DE102008020882A1 (en) * | 2008-04-25 | 2009-10-29 | Ledon Lighting Jennersdorf Gmbh | Light emitting device, has inhomogeneous light source and wavelength converting element positioned in relation to each other such that pre-defined optical characteristics of light is achieved by device |
| WO2011091839A1 (en) | 2010-01-29 | 2011-08-04 | Merck Patent Gmbh | Luminescent substances |
| DE102010021341A1 (en) | 2010-05-22 | 2011-11-24 | Merck Patent Gmbh | phosphors |
| WO2011147517A1 (en) | 2010-05-22 | 2011-12-01 | Merck Patent Gmbh | Luminescent substances |
| WO2012010244A1 (en) | 2010-07-21 | 2012-01-26 | Merck Patent Gmbh | Aluminate luminescent substances |
| DE102010031755A1 (en) | 2010-07-21 | 2012-02-09 | Merck Patent Gmbh | Aluminate phosphors |
| WO2012010243A1 (en) | 2010-07-22 | 2012-01-26 | Merck Patent Gmbh | Carbodiimide luminescent substances |
| DE102010031914A1 (en) | 2010-07-22 | 2012-01-26 | Merck Patent Gmbh | Carbodiimide phosphors |
| DE102010045368A1 (en) | 2010-09-14 | 2012-03-15 | Merck Patent Gmbh | Silicophosphate phosphors |
| WO2012034625A1 (en) | 2010-09-14 | 2012-03-22 | Merck Patent Gmbh | Silicophosphate luminophores |
| DE102010037813A1 (en) * | 2010-09-28 | 2012-03-29 | Power Data Communications Co., Ltd. | Sealing compound manufacturing method for LED, involves heating and stamping two sealing compound layers and phosphor powder to form compact component that is cut from sealing compound layers and phosphor powder to form covering of LED |
| DE102010037813B4 (en) * | 2010-09-28 | 2013-08-14 | Power Data Communications Co., Ltd. | A method of making a cover of a light emitting diode and cover assembly made by this method |
| DE102010047474A1 (en) | 2010-10-06 | 2012-04-12 | Merck Patent Gmbh | Mn-activated phosphors |
| WO2012045393A1 (en) | 2010-10-06 | 2012-04-12 | Merck Patent Gmbh | Mn-activated phosphors |
| WO2012062758A1 (en) * | 2010-11-09 | 2012-05-18 | Osram Opto Semiconductors Gmbh | Luminescence conversion element, method for the manufacture thereof and opto-electronic component having a luminesence conversion element |
| US9299878B2 (en) | 2010-11-09 | 2016-03-29 | Osram Opto Semiconductors Gmbh | Luminescence conversion element, method for the manufacture thereof and optoelectronic component having a luminescence conversion element |
| DE102011010118A8 (en) * | 2011-02-02 | 2012-12-13 | Osram Opto Semiconductors Gmbh | Ceramic conversion element, semiconductor chip with a ceramic conversion element and method for producing a ceramic conversion element |
| DE102011010118A1 (en) * | 2011-02-02 | 2012-08-02 | Osram Opto Semiconductors Gmbh | Ceramic conversion element, semiconductor chip with a ceramic conversion element and method for producing a ceramic conversion element |
| US9076933B2 (en) | 2011-02-02 | 2015-07-07 | Osram Opto Semiconductors Gmbh | Ceramic conversion element, semiconductor chip comprising a ceramic conversion element and method for producing a ceramic conversion element |
| WO2012152652A1 (en) * | 2011-05-06 | 2012-11-15 | Osram Opto Semiconductors Gmbh | Conversion element for light-emitting diodes and production method |
| US9590147B2 (en) | 2011-05-06 | 2017-03-07 | Osram Opto Semiconductors Gmbh | Conversion element for light-emitting diodes and production method |
| WO2013013931A1 (en) * | 2011-07-25 | 2013-01-31 | Osram Ag | Lighting device |
| DE102012101892A1 (en) * | 2012-03-06 | 2013-09-12 | Osram Opto Semiconductors Gmbh | Wavelength conversion element, semiconductor light emitting device and display device therewith and method for producing a wavelength conversion element |
| DE102012101892B4 (en) * | 2012-03-06 | 2021-05-12 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Wavelength conversion element, light-emitting semiconductor component and display device therewith as well as method for producing a wavelength conversion element |
| US9343636B2 (en) | 2012-03-06 | 2016-05-17 | Osram Opto Semiconductors Gmbh | Wavelength conversion element, light-emitting semiconductor device and display apparatus therewith, and method for producing a wavelength conversion element |
| WO2014067609A1 (en) | 2012-11-02 | 2014-05-08 | Merck Patent Gmbh | Eu-activated luminophores |
| DE102012021570A1 (en) | 2012-11-02 | 2014-05-22 | Merck Patent Gmbh | Eu-activated phosphors |
| DE102012220656A8 (en) * | 2012-11-13 | 2015-03-12 | Siemens Aktiengesellschaft | In situ doping for the production of structured or graded phosphor ceramics |
| DE102012220656A1 (en) * | 2012-11-13 | 2014-05-15 | Siemens Aktiengesellschaft | Manufacturing phosphor ceramic useful as wavelength converter in light-emitting device, comprises coating doping element on surface of matrix material, and distributing doping element within matrix material using thermal process step |
| WO2014187530A1 (en) * | 2013-05-23 | 2014-11-27 | Merck Patent Gmbh | Phosphors |
| US9920246B2 (en) | 2013-05-23 | 2018-03-20 | Merck Patent Gmbh | Phosphors |
| WO2015082032A1 (en) | 2013-12-04 | 2015-06-11 | Merck Patent Gmbh | Eu2+ -activated phosphors |
| WO2016135057A1 (en) | 2015-02-27 | 2016-09-01 | Leuchtstoffwerk Breitungen Gmbh | Phosphor composite ceramic and method for the production thereof |
| DE102015102842A1 (en) * | 2015-02-27 | 2016-09-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Fluorescent composite ceramics and process for their preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090054978A (en) | 2009-06-01 |
| WO2008017353A1 (en) | 2008-02-14 |
| EP2049617A1 (en) | 2009-04-22 |
| CN101501160A (en) | 2009-08-05 |
| TW200815564A (en) | 2008-04-01 |
| AU2007283176A1 (en) | 2008-02-14 |
| CA2660385A1 (en) | 2008-02-14 |
| JP2010500704A (en) | 2010-01-07 |
| US20100187976A1 (en) | 2010-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102006037730A1 (en) | LED conversion phosphors in the form of ceramic bodies | |
| EP2401342B1 (en) | Nitridosilicates co-doped with zirconium and hafnium | |
| EP2207866B1 (en) | Coated phosphor particles with refractive index adaption | |
| EP2576725B1 (en) | Luminescent substances | |
| EP2616523B1 (en) | Silicophosphate luminophores | |
| EP2528991B1 (en) | Luminescent substances | |
| DE102006054331A1 (en) | Phosphor body based on platelet-shaped substrates | |
| EP2324096B1 (en) | Codoped 1-1-2 nitrides | |
| WO2008058619A1 (en) | Phosphor plates for leds from structured films | |
| EP2914688B1 (en) | Eu-activated luminophores | |
| WO2008058618A1 (en) | Phosphor body containing ruby for white or color-on-demand leds | |
| DE102007010719A1 (en) | Phosphors consisting of doped garnets for pcLEDs | |
| EP1989578A1 (en) | Method for incorporating nanophosphors in microoptical structures | |
| DE102014107972A1 (en) | Lighting device with a first phosphor and filter particles | |
| DE112006000291T5 (en) | Phosphor, its method of preparation and light-emitting device | |
| DE112006001722T5 (en) | Fluorophore and process for its preparation and illumination device | |
| EP1997158A1 (en) | Gas phase infiltration of luminous substances into the pore system of inverse opals | |
| EP2454340A1 (en) | Co-doped silicooxynitrides | |
| EP1670876B1 (en) | Highly efficient luminous substance | |
| WO2013159857A1 (en) | Silicate phosphors | |
| DE102007003785A1 (en) | Emitter converter chip | |
| DE102009050542A1 (en) | Sm-activated aluminate and borate phosphors | |
| WO2024033022A1 (en) | Luminophore, method for the production of a luminophore and radiation-emitting component | |
| DE102021203336A1 (en) | FLUORESCENT, METHOD FOR MANUFACTURING A FLUORESCENT AND RADIATION-emitting device | |
| WO2019053242A1 (en) | MULTICOMPONENT LIGHTING MATERIALS AS COLOR CONVERTER FOR SOLID LIGHT SOURCES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |